MATHESON, Circuit Judge.
Damion Tittle1 pled guilty to violating 18 U.S.C. § 922(g)(1), which bars felons from possessing firearms. This crime carries a maximum sentence of 10 years, see 18 U.S.C. § 924(a)(2), but the Government argued Mr. Tittle’s sentence should be enhanced under the Armed Career Criminal Act (“ACCA”), see 18 U.S.C. § 924(e)(1). The enhancement — a mandatory minimum term of 15 years — applies when a defendant has “three previous convictions ... for a violent felony or a serious drug offense, or both.” 18 U.S.C. § 924(e)(1). The district court concluded Mr. Tittle had three qualifying offenses and sentenced him to a prison term of 188 months, more than 15 years.
On appeal, Mr. Tittle argues he is not subject to an ACCA-enhanced sentence because one of his three prior convictions is not a qualifying offense. We agree. Exercising jurisdiction under 18 U.S.C. § 3742(a) and 28 U.S.C. § 1291, we vacate his sentence and remand for resentencing.
I. BACKGROUND
In August 2015, Mr. Tittle pled guilty to being a felon in possession of firearms. The written plea agreement specified that Mr. Tittle faced a penalty “based on the possible application of [the ACCA]” of “not less than fifteen years up to life imprisonment.” App., Vol. 1 at 45. The agreement [1262]*1262further provided that “[i]f [the ACCA] is found not to apply, the maximum penalty is up to ten years imprisonment.” Id.
The Government argued for an ACCA sentence because Mr. Tittle had three qualifying Oklahoma state convictions:
1. unlawful distribution of cocaine;
2. unlawful trafficking in cocaine within 1,000 feet of a public park; and
3. feloniously pointing a firearm.
Mr. Tittle conceded the two cocaine convictions qualified as “serious drug offenses” under the ACCA, see 18 U.S.C. § 924(e)(2)(A), but he argued his conviction for feloniously pointing a firearm did not constitute a “violent felony” as defined by the ACCA, see 18 U.S.C. § 924(e)(2)(B).
Deciding whether a prior conviction qualifies as an ACCA predicate offense requires comparing the crime’s elements to the ACCA. This elements-based comparison is known as the “categorical approach,” which we discuss in detail below. Under it, if a crime’s elements satisfy the ACCA definition, the offense counts as an ACCA predicate.
Mr. Tittle’s 1996 firearm conviction was based on Okla. Stat. tit. 21 § 1289.16 (1995).2 We considered this statute in United States v. Hood, 774 F.3d 638 (10th Cir. 2014), and held it could be violated in both violent and nonviolent ways. Id. at 646. As such, Hood said a sentencing court must consult documents from the record of a defendant’s prior conviction under § 1289.16 to discern whether the conviction was violent and therefore qualifies as an ACCA predicate. Id. at 645.
This process of examining the record is known as the “modified categorical approach.” Described more fully below, this approach looks to the record documents to identify the relevant elements for the defendant’s crime of conviction. Hood required application of the modified categorical approach to § 1289.16 convictions. Id.
When Hood was decided, the law in our circuit held that sentencing courts should apply the modified categorical approach when a defendant’s statute of conviction contained alternative terms, regardless of whether those terms described different means of committing a single crime or different elements delineating separate crimes. See United States v. Trent, 767 F.3d 1046, 1058-61 (10th Cir. 2014), abrogated by Mathis v. United States, — U.S. —, 136 S.Ct. 2243, 2251 n.1, 195 L.Ed.2d 604 (2016). In 2016, the Supreme Court held in Mathis that the distinction between means and elements is important and that the modified categorical approach is avail[1263]*1263able only when a statute lists alternative elements. 136 S.Ct. at 2253.
Because Mr. Tittle’s sentencing occurred in 2015 before Mathis was decided, the parties and the district court relied upon Hood. Mr. Tittle argued his § 1289.16 conviction was non-violent and thus not an ACCA offense. The Government argued Mr. Tittle had violated § 1289.16 in a violent fashion because the factual summary in his state plea agreement included the following handwritten statement: “I pointed a weapon at [the victim] and threatened her life.” App., Vol. 1 at 94.3
The district court followed Hood and applied the modified categorical approach by examining record materials from Mr. Tittle’s state case to learn how he had violated § 1289.16. Based on the handwritten admission in the plea agreement, the court ruled Mr. Tittle had been convicted under the violent portion of § 1289.16 and that he therefore had three qualifying ACCA offenses. Applying the ACCA enhancement, the court sentenced Mr. Tittle to 188 months in prison.
Mr. Tittle filed a timely notice of appeal in December 2015. See Fed. R. App. P. 4(b)(1)(A)(i).4
On June 23, 2016, the Supreme Court decided Mathis, 136 S.Ct. 2243, which the parties have addressed in their briefs. Mathis’s effect on our Hood decision is the central issue in this appeal.
II. DISCUSSION
We begin with our standard of review. We then address relevant case law, including Mathis, on how courts should determine whether a defendant’s past convictions warrant an ACCA enhancement. Applying the law to Mr. Tittle’s conviction under § 1289.16, we conclude it is not a qualifying ACCA offense and remand for resentencing.
A. Standard of Review
Whether a prior conviction satisfies the ACCA’s violent felony definition is a legal question we review de novo. United States v. Ridens, 792 F.3d 1270, 1272 (10th Cir. 2015). But we typically review for plain error when on appeal “a defendant [1264]*1264objects to an ACCA enhancement on grounds different from those presented in the trial court.” Hood, 774 F.3d at 645; see Fed. R. Crim. P. 52(b).
The parties disagree about the standard of review. Mr. Tittle asserts our review should be de novo because Mathis had not been decided when he was sentenced and Hood foreclosed the argument he makes now — that we should apply the categorical approach to § 1289.16 convictions. See Hood, 774 F.3d at 645 (holding modified categorical approach applies to § 1289.16). The Government agrees that whether a prior conviction qualifies under the ACCA is a legal question but argues our review should be for plain error because Mr. Tittle did not object to the district court’s use of the modified categorical approach under Hood,5
We need not resolve this dispute. An illegal sentence — one “where the term of incarceration exceeds the statutory maximum” — “trigger[s] per se, reversible, plain error.” United States v. Gonzalez-Huerta, 403 F.3d 727, 739 n.10 (10th Cir. 2005) (en banc). As we will show, Mr. Tittle received an illegal sentence. We would therefore vacate his sentence under either standard of review.
B. Legal Background
In this section, we (1) describe the ACCA enhancement, (2) explain the approaches courts use to determine whether a prior conviction is an ACCA-qualifying offense, and (3) discuss selection of the applicable approach.
1. The ACCA Enhancement
Absent an enhancement under the ACCA, “the felon-in-possession statute sets a 10-year maximum penalty.” Mathis, 136 S.Ct. at 2248 (citing 18 U.S.C. § 924(a)(2)). But the “ACCA prescribes a 15-year mandatory minimum sentence if a defendant is convicted of being a felon in possession of a firearm following three pri- or convictions for a ‘violent felony.’ ” Id. “Serious drug offenses” can also count as ACCA predicate convictions. See 18 U.S.C. § 924(e)(1). Convictions by guilty plea qualify as ACCA offenses. See Shepard v. United States, 544 U.S. 13, 19, 125 S.Ct. 1254, 161 L.Ed.2d 205 (2005). The government must show a past offense qualifies as [1265]*1265an ACCA predicate. See United States v. Delossantos, 680 F.3d 1217, 1219 (10th Cir. 2012).
There is no dispute that Mr. Tittle has two “serious drug offenses.” He is subject to the ACCA’s 15-year mandatory minimum only if his 1996 Oklahoma conviction for feloniously pointing a firearm under § 1289.16 qualifies as a violent felony.
The ACCA’s “force clause” defines violent felony as follows:
(B) [T]he term “violent felony” means any crime punishable by imprisonment for a term exceeding one year ... that—
(i) has as an element the use, attempted use, or threatened use of physical force against the person of another[.]
18 U.S.C. § 924(e)(2)(B)(i).6 “[physical force” in this definition “means violent force — that is, force capable of causing physical pain or injury to another person.” Johnson v. United States, 559 U.S. 133, 140, 130 S.Ct. 1265, 176 L.Ed.2d 1 (2010); see also United States v. King, 979 F.2d 801, 803 (10th Cir. 1992) (“[Tjhreatened use of physical force means both an intent to use force and a communication of that intent.” (quotations omitted)).7
2. The Categorical and Modified Categorical Approaches
The categorical and modified categorical approaches are not mutually exclusive alternatives. Courts always apply the categorical approach to determine whether a prior offense qualifies as an ACCA violent felony by comparing the elements of the crime of conviction to the ACCA. The modified categorical approach, by contrast, is not used in every case, but, when the statute of conviction is divisible in that it contains more than one crime, the modified categorical approach reveals the relevant elements for the comparison under the categorical approach.8
a. The categorical approach
To determine whether a prior conviction is categorically an ACCA violent felony, courts do not consider the facts underlying the prior conviction, however violent those facts may be. Instead, the inquiry is whether the crime’s elements satisfy the ACCA’s definition of violent felony. If some conduct that would be a crime under the statute would not be a violent felony under the ACCA, then any conviction under that statute will not count toward an ACCA enhancement, regardless of whether the conduct that led to the defendant’s prior conviction was in fact violent.
In Taylor v. United States, 495 U.S. 575, 110 S.Ct. 2143, 109 L.Ed.2d 607 (1990), the Supreme Court established this elements-based approach to determine whether a conviction qualifies as an ACCA offense. The Court said, “Congress intended that the [ACCA] enhancement provision be triggered by crimes having certain specified elements.” Id. at 588, 110 S.Ct. [1266]*12662143. This “formal categorical approach” looks to the elements of the statutes of conviction “and not to the particular facts underlying those convictions.” Id. at 600, 110 S.Ct. 2143. A prior conviction is an ACCA predicate only if the elements of the prior crime necessarily satisfy the ACCA definition. See Descamps v. United States, - U.S. -, 133 S.Ct. 2276, 2281, 186 L.Ed.2d 438 (2013); see also id. at 2287 (“Congress ... meant ACCA to function as an on-off switch, directing that a prior crime would qualify as a predicate offense in all cases or in none.”).
“[I]f the statute sweeps more broadly” than the ACCA definition — that is, if some conduct would garner a conviction but would not satisfy the definition— then any “conviction under that law cannot count as an ACCA predicate.” Id. at 2283; see also Mathis, 136 S.Ct. at 2251 (“We have often held, and in no uncertain terms, that a state crime cannot qualify as an ACCA predicate if its elements are broader than those of a listed generic offense.”). This is so even when the defendant’s conduct leading to the underlying conviction would satisfy the ACCA’s violent felony definition. “[T]he mismatch of elements saves the defendant from an ACCA sentence,” Mathis, 136 S.Ct. at 2251, because “[t]he key ... is elements, not facts,” Des-camps, 133 S.Ct. at 2283.
b. The modified categorical approach
Taylor left open the possibility that “in a narrow range of cases” the sentencing court “may ... go beyond the mere fact of conviction.” 495 U.S. at 602, 110 S.Ct. 2143. The modified categorical approach allows a court to peer around the statute of conviction and examine certain record documents underlying the defendant’s prior offense, but this is done only for a limited purpose.
Courts employ the modified categorical approach when a prior conviction is based on “a so-called ‘divisible statute,’ ” one that “sets out one or more elements of the offense in the alternative.” Descamps, 133 S.Ct. at 2281. For these statutes, “[n]o one could know, just from looking at the statute, which version of the offense [the defendant] was convicted of,” and there can be no categorical comparison of elements when the statute is unclear about which of the alternative elements formed the basis of the defendant’s conviction. Id. at 2284. For courts faced with a divisible statute, “the modified approach serves — and serves solely — as a tool to identify the elements of the crime of conviction when a statute’s disjunctive phrasing renders one (or more) of them opaque.” Mathis, 136 S.Ct. at 2253. Once the relevant elements are identified, the court applies the categorical approach.
Courts consult record documents from the defendant’s prior case for the limited purpose of identifying which of the statute’s alternative elements formed the basis of the prior conviction. Descamps, 133 S.Ct. at 2284-85.9 Although the record may reveal factual details of the offense, “[a] court may use the modified approach only to determine which alternative element in a divisible statute formed the basis of the defendant’s conviction.” Id. at 2293 (emphasis added). With the elements (not the facts) identified, courts “can then do what the categorical approach demands” and compare those elements to the ACCA definition. Id. at 2281.
[1267]*1267Thus, “the modified approach merely helps implement the categorical approach when a defendant was convicted of violating a divisible statute.” Id. at 2285. “[I]t preserves the categorical approach’s basic method” of comparing elements to the ACCA, but it “adds ... a mechanism” to identify the relevant elements and thereby facilitates the categorical comparison “when a statute lists multiple, alternative elements, and so effectively creates several different ... crimes.” Id. (second ellipsis in original) (quotations omitted).
3. Mathis — Means and Elements
“The modified approach ... has no role to play” when the statute of conviction is indivisible — i.e., when it lacks alternative elements. Id. at 2285; see also id. at 2282 (“[Sentencing courts may not apply the modified categorical approach when the crime of which the defendant was convicted has a single, indivisible set of elements.”). Thus, choosing the right initial approach is an essential step and depends on discerning whether the statute of conviction is “divisible.” In Mathis, the Supreme Court clarified how courts should take this step.
a. Elements as the key to divisibility
A statute is divisible only if it “sets out one or more elements of the offense in the alternative.” Id. at 2281 (emphasis added). It is not enough that a statute is framed in the disjunctive. As the Court stressed in Mathis, the statutory phrases listed in the alternative must be elements, not means. Mathis, 136 S.Ct. at 2256; see also United States v. Edwards, 836 F.3d 831, 833 (7th Cir. 2016) (“The Supreme Court recently clarified that a statute is considered divisible only if it creates multiple offenses by setting forth alternative elements.”); United States v. Gardner, 823 F.3d 793, 802 (4th Cir. 2016) (“A crime is not divisible simply because it may be accomplished through alternative means, but only when alternative elements create distinct crimes.”).
In Mathis, the Supreme Court defined the key distinction between “elements” and “means.” “Elements are the constituent parts of a crime’s legal definition — the things the prosecution must prove to sustain a conviction.” Mathis, 136 S.Ct. at 2248 (quotations omitted). “[T]hey are what the defendant necessarily admits when he pleads guilty.” Id. By contrast, means are “various factual ways of committing some component of the offense.” Id. at 2249. Beyond these definitional differences, in determining whether a prior conviction is an ACCA offense, elements matter and means do not. A past conviction counts “if, but only if, its elements” satisfy the ACCA. Id. at 2247.
If the listed items are alternative means of satisfying an element, then the statute is not divisible and the categorical approach must be applied. Id. at 2253. If the alternatives are elements, then the modified categorical approach should be applied. Id.
Because the choice of approach hinges on whether the statute is divisible and because a statute’s divisibility depends on the means/elements distinction, the Supreme Court in Mathis instructed that a court’s “first task” when “faced with an alternatively phrased statute is ... to determine whether its listed items are elements or means.” Id. at 2256; see also id. at 2248 (“Distinguishing between elements and facts is ... central to ACCA’s operation.”).
b. Separating elements and means
The Mathis decision identified several tools for deciding whether an alternatively phrased criminal law lists elements or means.
First, in some instances, the statute on its face will provide the answer. Id. [1268]*1268at 2256. For example, “[i]f statutory alternatives carry different punishments, then under Apprendi [v. New Jersey, 530 U.S. 466, 120 S.Ct. 2348, 147 L.Ed.2d 435 (2000),] they must be elements.” Id. “Conversely, if a statutory list is drafted to offer ‘illustrative examples,’ then it includes only a crime’s means of commission.” Id. Or sometimes the “statute may itself identify which things must be charged (and so are elements) and which need not be (and so are means).” Id.
Second, state-court decisions may answer the question. “When a ruling of that kind exists, a sentencing judge need only follow what it says.” Id.
Third, when “state law fails to provide clear answers,” federal courts “have another place to look: the record of a prior conviction itself.” Id.10 For instance, if an indictment or the jury instruction includes the statute’s alternative terms, “[t]hat is as clear an indication as any that each alternative is only a possible means of commission, not an element.” Id. at 2257.11 “Conversely, an indictment ... could indicate, by referencing one alternative term to the exclusion of all others, that the statute contains a list of elements, each one of which goes toward a separate crime.” Id.
If these tools — statutory text, state law authority, and record documents — do not answer the means/elements question, then a court “will not be able to satisfy Taylors demand for certainty” that the offense qualifies as an ACCA conviction. Id. (quotations omitted); see also United States v. Huizar, 688 F.3d 1193, 1195 (10th Cir. 2012) (stating we must be “certain” the prior conviction “necessarily” qualifies under the ACCA to apply the enhancement).
⅜ ⅜ ⅜ ⅜
In sum, the Supreme Court’s decisions instruct courts to decide first whether an alternatively phrased statute is comprised of elements or means and then, if the former, use the modified categorical approach to identify the relevant elements before applying the categorical approach.
' C. Analysis
We begin with Mathis’s impact on our conclusion in Hood that § 1289.16 is subject to the modified categorical approach. We conclude that we erred in Hood because § 1289.16 lists alternative means, not alternative elements. That conclusion compels us to use only the categorical approach and not use the modified categorical approach. Doing so, we find § 1289.16 is not categorically a violent felony. Although Hood failed to consider the means/elements distinction, Hood’s conclusion that § 1289.16 can be violated in nonviolent ways survives Mathis. Under the [1269]*1269categorical approach, therefore, § 1289.16 is not an ACCA violent felony. Because his § 1289.16 conviction does not count, Mr. Tittle does not have three qualifying offenses to warrant an ACCA enhancement.' His sentence, therefore, is illegal.
1. The Effect of Mathis
Mr. Tittle acknowledges that Hood determined the modified categorical approach applies to § 1289.16, but he argues that Mathis “requires reexamination of that conclusion” because Hood did not consider whether. § 1289.16’s alternative phrases are means or elements. Aplt. Br. at 13. Mr. Tittle contends § 1289.16 lists alternative means and that we must vacate his sentence because Mathis is intervening, contrary Supreme Court authority relative to Hood. See United States v. Brooks, 751 F.3d 1204, 1209 (10th Cir. 2014) (explaining we are not bound by past panel decisions “when the Supreme Court issues an intervening decision that is contrary to or invalidates our previous analysis” (quotations omitted)). The Government contends “the rationale of Mathis does not plainly abrogate Hood.” Aplee. Br. at 39.
We agree with Mr. Tittle. Hood bypassed the means/elements question and applied the modified categorical approach. But Mathis shows we erred in Hood to the extent we failed to consider whether § 1289.16’s disjunctive phrases are means or elements. The Supreme Court requires us to begin the analysis where Mathis does — at the means/elements inquiry. See Mathis, 136 S.Ct. at 2256 (describing the means/elements issue as the “threshold inquiry” and a court’s “first task”).12
2. Okla. Stat. tit. 21 § 1289.16 Is Not Divisible
Mr. Tittle argues the text of § 1289.16 and state law are consistent with and arguably supportive of his view that the alternative statutory phrases in § 1289.16 are means, but he bases his argument primarily on the record materials, specifically the charging document from his 1996 conviction.
The Government’s brief does not take a clear position on whether the alternative phrases in § 1289.16 are means or elements. Instead, the Government argues Mr. Tittle’s conviction qualifies under the ACCA regardless of whether the categorical or modified categorical approach is used and that we need not address whether the alternatives are means or elements. Pressed at oral argument, the Government agreed with Mr. Tittle that the statutory phrases “probably are means.” Oral Arg. at 27:54-57. The Government bases that conclusion on how § 1289.16 offenses are alleged — charging documents tend to include more than one of the alternative statutory phrases. Id. at 30:16-31:09.13 As we show below, that is true of Mr. Tittle’s charging document.
Using the three tools the Supreme Court identified in Mathis, we conclude [1270]*1270§ 1289.16 lists alternative means and is thus not a divisible statute.
First, we agree with the parties that the text of § 1289.16 does not answer the means/elements question on its own. The statute contains disjunctive phrases. At issue here are the terms listed after the words “for the purpose of.” With that in mind, § 1289.16 provides in relevant part:
It shall be unlawful for any person to willfully or without lawful cause point a shotgun, rifle or pistol, or any deadly weapon, whether loaded or not, at any person or persons for the purpose of threatening or with the intention of discharging the firearm or with any malice or for any purpose of injuring, either through physical injury or mental or emotional intimidation, or for purposes of whimsy, humor or prank....
Okla. Stat. tit. 21 § 1289.16 (1995) (emphasis added). The phrases are plainly alternatives, but it is not clear whether they are different means to commit the same crime or whether they define different crimes such that a jury would have to agree on a particular alternative to convict.14
Second, the Oklahoma Court of Criminal Appeals (“OCCA”) has not specifically decided the divisibility question. But Oklahoma case law at least suggests § 1289.16 lists alternative means to satisfy a single purpose element. In Thompson v. State, 169 P.3d 1198 (Okla. Crim. App. 2007), the court explained, “The language of § 1289.16 makes clear that this crime is about the act of pointing a firearm at another person or persons with some kind of improper purpose.” Id. at 1202 (second emphasis added). The court described “this crime” in the singular, not different crimes comprised of different elements, and the court appeared, by using the words “some kind,” to lump together all of the alternative phrases into a single improper purpose element.
Additional support comes from Wade v. State, 624 P.2d 86 (Okla. Crim. App. 1981), in which the OCCA said, “Section 1289.16 requires that the act be done with at least one of several specified intents or purposes, including to threaten, or to injure by mental or emotional intimidation.” Id. at 89 (emphasis added). The court’s listing of some, but not all, of the purpose alternatives suggests they are illustrative examples satisfying the statute’s purpose requirement. See Mathis, 136 S.Ct. at 2256 (“[I]f a statutory list is drafted to offer ‘illustrative examples,’ then it includes only a crime’s means of commission.”).
Oklahoma’s Uniform Jury Instructions provide an additional source of state law guidance.15 The relevant instruction provides:
No person may be convicted of pointing a firearm unless the State has proved [1271]*1271beyond a reasonable doubt each element of the crime. These elements are:
First, willfully;
Second, pointing a shotgun/rifle/pistol/(deadly weapon), whether loaded or unloaded;
Third, at any person(s);
Fourth, without lawful cause;
Fifth, (for the purpose of threatening)/(with the intention of discharging the firearm)/(with any malice)/(for any purpose of injuring, either through physical injury or mental or emotional intimidation)/(for purposes of whimsy/humor/[a prank] )/(in anger or otherwise).16
Okla. Unif. Jury Instr. CR 6-42 (alterations in original). The instruction bunches together the statutory purpose alternatives into a single element. It does not suggest the jury would have to agree on a particular alternative to satisfy the fifth element.
On their own, none of these state law sources conclusively resolves the means/elements question, but together they all but establish that § 1289.16⅛ purpose alternatives are means. We need not rest our conclusion only on these state law sources because Mathis’s third tool settles the issue.
Third, the record documents confirm that § 1289.16’s alternative purpose phrases are means.17 The charging instrument in Mr. Tittle’s § 1289.16 case alleged:
That the said DAMION TYRONE TITTLE did wilfully [sic], feloniously and without lawful cause point a .380 caliber pistol ... at [the victim], for the purpose of threatening and intimidating her, and with the unlawful, malicious and felonious intent then and there on the part of said defendant to injure the said [victim] physically, or for the purpose of mental or emotional intimidation, or whimsey [sic], humor or prank,
contrary to the form of the statute in such case made and provided and against the peace and dignity of the State.
App., Vol. 1 at 78. The presence of several of the statutory purpose alternatives in the charging document is significant. Mathis explained that when a charging document reiterates the alternatives from the statute, “[t]hat is as clear an indication as any that each alternative is only a possible means of commission, not an element that the prosecutor must prove to a jury beyond a reasonable doubt.” 136 S.Ct. at 2257.18
[1272]*1272Based on the foregoing analysis of the Mathis tools, we conclude the alternative statutory phrases in § 1289.16 are means, not elements. Accordingly, § 1289.16 is not a divisible statute. Our conclusion in Hood that § 1289.16 is subject to the modified categorical approach must yield to Mathis’s, rule that if a statute’s alternatives are means, then “the court has no call to decide which of the statutory alternatives was at issue in the earlier prosecution” by using the modified categorical approach. Id. at 2256. Because § 1289.16 is indivisible, we apply the categorical approach.19
3. Applying the Categorical Approach
We conclude that a conviction under § 1289.16 does not qualify as an ACCA offense because the statute’s elements can be satisfied without “the use, attempted use, or threatened use of physical force against the person of another.” 18 U.S.C. § 924(e)(2)(B)®. We decided this question in Hood. 774 F.3d at 646. Hood, although mistakenly using the word “elements” when it should have said “means,” concluded that the “statute contains some alternative elements [i.e., ‘means’] that would not require a threatened use of physical force.” Id. Mathis does not affect Hood’s conclusion that § 1289.16 can be violated in nonviolent ways. Hood correctly determined that § 1289.16, viewed as a whole, does not always “require a threatened use of physical force.” Id.; see also Johnson, 559 U.S. at 140, 130 S.Ct. 1265 (defining “physical force” in the ACCA as “violent force — that is, force capable of causing physical pain or [1273]*1273injury to another person”). Hood arrived at this conclusion through its consideration of § 1289.16’s purpose alternatives, which were the focus of (1) the parties’ briefs20 and (2) Hood’s analysis of the charging document when the court applied the modified categorical approach. 774 F.3d at 646.
Hood’s holding that some of the purpose alternatives “would not require a threatened use of physical force” is enough, under the categorical approach, to disqualify § 1289.16 convictions as predicates for an ACCA sentence. Id. Our own examination of the statute leads us to agree. Indeed, as the government conceded in Hood, the “whimsy, humor or prank” alternatives are non-violent. See Brief for Appellee at 46, Hood, 774 F.3d 638, No. 13-6182, 2014 WL 7172398, at *46. Because § 1289.16 can be violated without the “use, attempted use, or threatened use of physical force,” 18 U.S.C. § 924(e)(2)(B)(i), it is not categorically a violent felony. Hood’s conclusion to that effect ends our inquiry. The Government’s contrary arguments are unpersuasive.
4. Government’s Arguments
First, the Government argues we should disregard as dictum our language from Hood that § 1289.16 can be violated in non-violent ways. We disagree. “[D]ieta are statements and comments in an opinion concerning some rule of law or legal proposition not necessarily involved nor essential to determination of the case at hand.” In re Tuttle, 291 F.3d 1238, 1242 (10th Cir. 2002) (quotations omitted). “[A] panel of this Court is bound by a holding of a prior panel of this Court but is not bound by a prior panel’s dicta.” Bates v. Dep’t of Corr., 81 F.3d 1008, 1011 (10th Cir. 1996). Our determination in Hood that a person could violate § 1289.16 in both violent and non-violent ways was essential to our analysis. That conclusion preceded our application of the modified categorical approach, and we made clear our resort to the record documents was based on that determination. 774 F.3d at 646 (“Since this statute contains some alternative elements that would not require a threatened use of physical force, the modified categorical approach requires that we look to additional charging documents to determine the specific crime to which Hood pleaded guilty.” (emphasis added)). Our decision that § 1289.16 was not categorically a violent felony was thus critical to our judgment in Hood.
Second, the Government argues that Hood left open § 1289.16’s status under the categorical approach because we relied on the parties’ agreement that the modified categorical approach was appropriate. But we did not decide that § 1289.16 failed the categorical approach just because the parties said so. We explained: “[B]oth parties believe that a modified categorical approach applies, and we agree.” Id. at 645 (emphasis added); see also id. (“When a statute of conviction contains alternative elements — some of which do not require the threatened use of physical force — we use a modified categorical approach....”).
Third, the Government argues Mr. Tittle’s conviction should count as an ACCA predicate because § 1289.16 is categorically a crime of violence. In Hood, the Government argued the opposite position. See Brief for Appellee at 46, 2014 WL 1400517, at *46 (conceding some alternatives are non-violent).
The Government contends our pre-Hood decision in United States v. Ramon Silva, 608 F.3d 663 (10th Cir. 2010), supports its new position. We disagree. Ramon Silva [1274]*1274does not stand for the proposition that pointing a gun at a person inherently involves the threatened use of violent physical force, such that § 1289.16 must categorically be a violent felony.
Ramon Silva considered New Mexico’s crime of “ ‘apprehension causing’ aggravated assault” under N.M. Stat. § 30-3-2(A). Id. at 669. We held the crime qualified under the ACCA because state court decisions interpreting the offense required “proof that [the] defendant threatened or engaged in menacing conduct with a deadly weapon toward a victim, causing the victim to believe he or she was about to be in danger of receiving an immediate battery.” Id. at 670 (alteration in original) (quoting State v. Bachicha, 111 N.M. 601, 808 P.2d 51, 54 (1991)). Convictions under the New Mexico statute also required proof the defendant acted purposefully or engaged in conscious wrongdoing. Id. at 673 (citing State v. Campos, 122 N.M. 148, 921 P.2d 1266, 1277 n.5 (1996)). We rejected the defendant’s argument that the crime needed a specific intent element “to assault, injure or frighten” the victim. Id. at 672. It was enough that the proscribed conduct “communicates to [the] victim that [the offender] will potentially use ‘violent force’ against the victim in the near-future” and “always has the potential to lead to ‘violent force.’ ” Id. at 670-71.
Ramon Silva is not instructive here. The New Mexico statute required “threatening” or “menacing” conduct done purposefully or with conscious wrongdoing that actually caused the victim to fear an imminent battery. Section 1289.16 can be violated by threats of physical injury, but it is far broader, reaching actions taken for “purposes of whimsy, humor or prank.” Okla. Stat. tit. 21 § 1289.16 (1995).
As part of its argument that § 1289.16 should be considered a categorically violent felony, the Government reminds us that Moncrieffe v. Holder, — U.S. -, 133 S.Ct. 1678, 185 L.Ed.2d 727 (2013), declared that courts applying the categorical approach must “focus on the minimum conduct criminalized by the state statute” without applying “legal imagination” to consider hypothetical situations that technically violate the law but have no “realistic probability” of falling within its application. Id. at 1684-85 (quotations omitted).21 It contends Mr. Tittle cannot prevail because he has not supplied “any case in which Oklahoma has prosecuted someone under § 1289.16 for pointing a firearm in obvious jest.” Aplee. Br. at 27 n.7 (quotations omitted). Again, we disagree.
This is not a case where we need to imagine hypothetical non-violent facts to take a statute outside the ACCA’s ambit. Section 1289.16 reaches conduct undertaken for purposes of “whimsy, humor or prank” because the statute specifically says so. The Government gives no persuasive reason why we should ignore this plain language to pretend the statute is narrower than it is. It cites United States v. Castillo, 811 F.3d 342 (10th Gir. 2015), and, in a Rule 28(j) letter,22 United States v. Harris, 844 F.3d 1260 (10th Cir. 2017). But both cases found that crimes under the statutes at issue categorically qualified for sentence enhancements. Castillo, 811 F.3d at 349; Harris, 844 F.3d at 1270. Here, no legal imagination is required to see that the threatened use of physical force is not necessary for a conviction un[1275]*1275der § 1289.16. Where, as here, the statute lists means to commit a crime that would render the crime non-violent under the ACCA’s force clause, any conviction under the statute does not count as an ACCA violent felony.
Mathis is instructive. The Court did not apply — or even mention — the “realistic probability” test. It found (1) the statute at issue listed alternative means and (2) some of those means did not satisfy the ACCA’s generic burglary definition. 136 S.Ct. at 2250. The Court concluded, “Under our precedents, that undisputed disparity resolves this case.” Id. at 2251. The Court did not seek or require instances of actual prosecutions for the means that did not satisfy the ACCA. The disparity between the statute and the ACCA was enough.23
As Hood recognized, § 1289.16 does not necessarily require “the use, attempted use, or threatened use of physical force against the person of another.” 18 U.S.C. § 924(e)(2)(B)(i); see Hood, 774 F.3d at 646. Section 1289.16 is therefore not categorically a violent felony.
5. Mr. Tittle’s Sentence Is Illegal
Mr. Tittle received an illegal, over-maximum sentence. Section 1289.16 is not categorically a violent felony under the ACCA. It “swe[eps] more broadly” than the ACCA definition, and, under the categorical approach, no conviction for an overbroad statute can count as an ACCA predicate. Mathis, 136 S.Ct. at 2248-49. Because Mr. Tittle’s § 1289.16 conviction does not qualify as an ACCA “violent felony,” he lacks the three convictions required to trigger the ACCA enhancement. Without the enhancement, the maximum sentence for Mr. Tittle’s offense is 120 months, see 18 U.S.C. § 924(a)(2), which means his sentence of 188 months is illegal. See Gonzalez-Huerta, 403 F.3d at 739 n.10 (explaining that a sentence is illegal “where the term of incarceration exceeds the statutory maximum”).
Mr. Tittle is entitled to resentencing even under a plain error standard because illegal sentences “trigger per se, reversible, plain error.” Id.; see also United States v. Catrell, 774 F.3d 666, 669 (10th Cir. 2014) (applying per se plain error rule and remanding for correction of illegal sentence); cf. United States v. Shipp, 589 F.3d 1084, 1091 (10th Cir. 2009) (holding improper application of ACCA sentence violated due process and “inherently resulted] in a complete miscarriage of justice”).
[1276]*1276III. CONCLUSION
We vacate Mr. Tittle’s sentence and remand for resentencing in conformity with the relevant statutory maximum of 120 months. See 18 U.S.C. § 924(a)(2).24