Rat King, Verminister

The end-step trigger is the whole evaluation, and it is conditional in a way the body's price tag hides. A permanent has to leave your side of the board during your turn for the 1/1-and-counter to fire, and it fires once: the trigger checks whether the condition was met, not how many times, so a turn where you eat a Food, sacrifice a token, and lose another in combat still banks exactly one counter and one token. Cast it turn two into an empty board and it sits as a 1/1 doing nothing. The compounding is slow, one counter per turn you actually act, but a medium-speed format hands you those turns, and a single self-fed 1/1 each end step out-grinds the format's standard 2/2 and 2/3 commons over a few turns.

The activation taps the King and sacrifices three Rats to return a dead creature, gated on having the bodies and an untapped, non-summoning-sick engine. This is not a response to a removal spell; it is a planned closer. By the late midgame the rats accumulate and a Turtle legend in the yard becomes a real second threat off three tokens you can spare.

WB Sacrifice wants it as the counter-banking centerpiece, the engine it builds around. BG Food values the same tokens differently: as chump fodder and life conversion off Anchovy & Banana Pizza, prizing the recursion over the beatdown. P1P1 in any black seat. The honest brake is Grounded for Life, which white plays to kill the 1/1 before a counter lands; on the draw into a white opener the King plays softer than its ceiling. It still survives Stomped by the Foot better than most two-drops, because every turn it lives refills its own fuel. Maindeck always.

The name-matching reanimation clause is doing all the work here, and it points the build in one direction: rat tribal as a self-funding reanimation engine. The token side feeds the activation, the activation rebuilds the board, and Disappear forces you to keep the cycle turning. Relentless Rats and Rat Colony stop being filler and become the payload, because sacrificing three rats to return one and "all other cards with the same name" can drag four or five copies back at once. That is the build-around pivot, and it is genuinely novel for black recursion.

As your own commander, this is a Bracket 2-3 home for a dedicated rat deck. It does not displace Marrow-Gnawer as the rat aggro general; Marrow-Gnawer floods faster and swings harder, while Rat King wants the slower attrition plan where you bleed permanents on purpose and grind the graveyard. The two read as different decks wearing the same creature type. In the 99, Rat King is narrower still. A few mono-black sacrifice lists could run it, but Yawgmoth, Thran Physician and the Endrek Sahr token-and-feed shells already have better sacrifice payoffs and rarely lean on name-matched recursion.

Budget tier is friendly: the deck's core is cheap commons, and the commander itself should sit at sub-$5. There is a real overlap with mill, though it runs through the reanimation clause rather than shared cards: Persistent Petitioners are Human Advisors, not Rats, but a rat-heavy graveyard can still buy them back en masse, so a self-milling shell can lean on Rat King to rebuild a Petitioner army for the alternate win. The card is invisible outside rat tribal, which is most of the table. This is not a value engine you splash; it is the spine of one specific, deliberately repetitive deck, and it only pays off if you commit to the swarm the singleton rule usually tells you to avoid.

A two-mana payoff for the fringe Modern Rat tribal builds that run a full set of Relentless Rats and lean on the name-matched reanimation as a recursion engine. That is the only shell that asks for it, and it turns up there as a small stack of copies rather than a one-of. Outside that deck the end-step departure trigger and the three-rat sacrifice cost want a board Modern is not otherwise building toward. Cut it the moment the list is anything other than dedicated Rats.

Legal since its March 2026 release, but yet to register in any tracked Standard deck this season. The card is built for a format that does not exist in sixty-card Standard: the name-matched reanimation clause wants Relentless Rats, Rat Colony, and the Persistent Petitioners shell, and the singleton-breaking cards that make those work are Commander furniture, not Standard playables. Without a critical mass of identically named rats in the graveyard, the second ability returns a single creature for three sacrifices and a tap, which is a rate no Standard deck has reason to build toward.

The Disappear trigger is the more interesting half in a vacuum, since it asks only that a permanent leave the battlefield each turn, and Standard does have aristocrats-adjacent black decks that could feed it. But a 1/1 that needs a full turn cycle to grow one counter and one token is too slow against the format's aggressive starts, and the payoff for the engine, the mass return, has no fuel here. The body and the build-around both point away from the current pool.

Rat King rotates with its parent block in the fall 2027 cycle, the exact date pending Wizards' announcement. Nothing on the announced schedule suggests a rat-tribal payoff arriving to give it a Standard home before then, though the format's pool turns over constantly and a single rat-matters printing would change the math. As things stand, this is a Commander card that happens to be Standard-legal, and rotation will pass it by without much to record.

Legal in Pioneer since its printing this season, and registered in none of the format's tracked tournament lists so far. The reasons are structural and easy to name. This is a legendary creature whose payoff is a triple commander build: a 1/1 with an end-step departure trigger, a rat-token engine, and a name-matched mass reanimation activation that costs three sacrificed rats. Pioneer has no deck that wants any leg of that, let alone all three.

The reanimation clause asks you to stock a graveyard with redundant copies of the same creature, which is a singleton-breaking ask that the Relentless Rats family answers in Commander and nowhere in a sixty-card constructed format. Pioneer's sacrifice decks run different engines: the black aristocrats shells lean on Cauldron Familiar and Witch's Oven, and the Greasefang reanimation package wants one specific vehicle back, not a swarm of identical bodies. Neither has a slot for a 1/1 that needs a built-around graveyard to do anything.

There is no slot competition to describe, because there is no archetype here to be displaced from. The body is too small to interact, the Disappear trigger only fires on your end step, and the activation is sorcery-speed and self-referential. This is a Commander card wearing constructed legality. The deck that would use it does not exist in Pioneer's map, and nothing about the current format suggests one is forming.

A two-mana commander whose engine, name-matched mass reanimation off three sacrificed rats, is built for singleton-breaking swarm decks that Vintage does not field. In a format where Black Lotus makes three mana on turn zero and Demonic Tutor finds Yawgmoth-tier payoffs for two, a 1/1 that needs a stocked rat graveyard and an end-step departure trigger to do anything has no slot. A scattered appearance or two among tracked decks reads as a curiosity, not a presence. Noise.

A two-mana legendary creature that wants to be a commander, in a 60-card format that does not run one. The end-step departure trigger, the rat-token engine, and the name-matched reanimation activation are all built for a singleton-defying swarm that Legacy decks have no reason to assemble. The reanimation slot here is measured against Reanimate at one mana and Animate Dead at two, both of which hit a single fatty now rather than asking you to sacrifice three rats and stock a graveyard with redundant copies first. As a 1/1 for two it pays the Daze tax on the way in for no body and no immediate effect. Legal, but yet to register in tracked tournament play this season. Does not clear the bar.