Raph & Leo, Sibling Rivals

The first-combat clause is the entire pick math. In a format that settles at 2/2 for two and 2/3 or 3/2 for three, a 2/4 that survives a turn-four attack into open mana is the median line, not the ceiling. The trigger resolves the moment you declare the attack, so the second combat is already locked in before damage; a blocker that eats the Turtles in the damage step changes nothing about the extra phase or the second swing from the untapped attackers.

What the format decides is whether the body lives to swing the first time. Stomped by the Foot, Bot Bashing Time, and Dimensional Exile all line up against a three-mana legend, so the tax is surviving the turn before the attack, not the attack itself.

P1P1 in any base-Boros seat. RW Equipment is the home: Bespoke Bō or Novel Nunchaku on an attacker that gets untapped for a second pass is the cleanest two-card swing the format offers, and the two-target cap steers you toward exactly that line rather than the wide token plan the card refuses to reward. A Mardu food-and-sacrifice build takes it on rate, but the second combat earns less when the rematch threats are small and trade down.

The physics that elevate it: 59 cards carry Sneak, so the untap feeds evasive attackers that connect twice, and with only seven Vigilance cards in the set, almost nothing else stays back to repeat. The hybrid pips also cast it off , so UR Sneak runs it to double a single unblockable clock. Maindeck wherever the mana exists.

The extra-combat clause reads like a finisher, but the body and the two-target cap point this at a narrower job than the Aggravated Assault loop. As a commander, Raph & Leo, Sibling Rivals wants a deck built around one or two large attackers rather than a wide board, and the untap-two-attackers wording makes it a natural engine for a Voltron or a Boros aggro toolbox. The clearest fit is as the commander of its own deck, where the second combat phase plus an untap on a single equipped threat doubles the damage clock without needing to find a separate extra-combat enabler.

It also makes a clean 99 in other Boros aggro shells. Wyleth, Soul of Steel uses the untap to swing twice with a loaded equipment threat and refill on the second connect; Adeline, Resplendent Cathar turns the extra combat into a second wave of tokens, though the two-target cap means only two of her body get the untap, not the whole team.

This is a Bracket 2-3 card, an optimized casual piece rather than a high-power one. The first-combat clause caps it at one extra phase, so it never threatens the turn-cycle kills that Bracket 4-5 Boros combat decks are built around, and it is not a cEDH card. Expect a sub-$5 to $5-15 secondary price out of the gate for a new mythic-rate legend.

Against Aggravated Assault or Seize the Day, the trade is the attached 2/4 versus the inability to loop. In a deck that just wants one reliable second swing on a single threat, that body and the lower mana value win out. In a deck that wants infinite combats, this is the wrong card and those enablers are correct. The political read is gentle here: one extra combat on two creatures reads as a tempo turn, not a table-ending threat.

An extra-combat enabler for a Boros aggro shell that does not exist in Modern, where the format's combat-step payoffs live in faster, more linear decks that have no room for a 2/4 that wants to attack twice. Legal, but yet to register in tracked tournament play. The first-combat clause that makes it a clean Commander card also caps its ceiling, and Modern aggro is not asking for a three-mana body whose value is gated behind surviving a combat step. No archetype here wants this. Keep it in your Commander stack.

Legal since March 2026, and so far this is a fringe card in Standard, registered in a tracked deck only on the rarest occasion this season and not in any quantity worth calling a build-around. The math the identity blurb lays out is the problem in practice as much as it is the elegance of the design. An extra combat phase off a three-mana body reads like an engine, but the first-combat clause means you get the swing once, and the 2/4 has to land the attack to deliver it. Current Standard does not reward that line. The aggressive Boros and Mardu shells in the format want to be ahead on the first combat, not investing a turn-three slot in a body that pays off only when an attack resolves clean and the board is already favorable. A 2/4 that hands the untap to one or two attackers, not the whole team, also fights the token-wide decks that would otherwise want a second swing. It steers Voltron, and Standard's Voltron support is thin right now. The result is a card whose ceiling needs a built-around shell that the present pool has not produced.

Rotates in the fall 2027 cycle with its parent set, putting it among the longer clocks in the legal pool. The runway is real: nothing on the announced schedule gives it a home today, but the card has two full Standard years to find one, and a single Boros aggressive payoff or a cheaper untap-relevant threat could change the read. Until then it stays where it is, legal and waiting.

Legal since its release this season, this has yet to register in tracked Pioneer tournament play, and the reason is structural rather than incidental. The extra-combat effect is real, but the first-combat clause makes it a single additional swing per turn, and the two-target cap steers the payoff toward a pair of chosen attackers rather than a board. That points at a Boros Voltron or aggressive-combat shell, and Pioneer does not have one that wants a three-mana enabler with a 2/4 body that has to survive a combat step before it pays off.

The decks that come closest do not bend this way. Boros Heroic is built on cheap pump spells and protection on a single threat, racing to lethal in the first combat; it has no use for a second combat phase it was not building toward, and a three-drop that does nothing the turn it lands is a tempo loss in a deck that wins on turns four and five. Mono-White Humans and the various Boros aggro builds want their three-slot to apply pressure on contact, not to set up a follow-up swing.

There is no active slot conversation here, because the archetype that would run this is the one Pioneer lacks: a midrange-Voltron deck that wins through repeated combat with a small number of large attackers. The repeatable extra-combat engines this competes against in older formats sit at four and five mana with no body, so the rate is genuinely better; the deck to spend it in just is not in the format's current map.

A three-mana 2/4 offering an extra combat phase, measured against a format where Black Lotus and two Moxen put real threats on the table turn one and where the extra-combat slot has never been a Vintage question. The first-combat clause keeps the rate honest in Commander; in Vintage the card asks you to survive to a profitable second swing in a format that wins through Tinker, Oath, and Bazaar before combat matters. The mana math does not exist here. Legal, but not registered in any tracked Vintage deck of consequence this season. Noise.

A three-mana extra-combat creature in a format where the second combat has always cost four or five mana, but where extra combats are not a real Legacy strategy to begin with. The honest comparison is not to Relentless Assault or Aggravated Assault; it is to the fact that Legacy's red-white aggressive slot belongs to Death and Taxes, and Death and Taxes wants Stoneforge Mystic, Thalia, and Skyclave Apprentice, not a 2/4 that needs to attack, survive, and connect to pay off. The body is too slow to pressure and too fragile to engine, and a three-drop pays the Force of Will tax for an effect Legacy has never wanted. Legal, but yet to register in tracked tournament play. Does not clear the bar.