You don't have to choose a target for Irma's ability. However, if you do and the target creature is an illegal target as Irma's ability tries to resolve, it won't resolve and none of its effects will happen. Irma won't become a copy of anything else, and you won't put a +1/+1 counter on her.
Irma copies exactly what was printed on the original creature and nothing else, with the listed exceptions (unless that creature is copying something else; see below). She doesn't copy whether that creature is tapped or untapped, whether it has any counters on it or Auras and Equipment attached to it, and so on.
Because Irma isn't entering the battlefield when she becomes a copy of another creature, any "When [this creature] enters" or "[This creature] enters with" abilities of the copied creature won't apply.
Last observed on Scryfall 2 months ago at $5.05. Over the trailing 90 days the price moved between $3.45 and $5.50 across 46 observations. Cross-checked across TCGplayer, eBay sold, Cardmarket EU, and Star City.
This printing is one of 3 catalogued treatments from TMC — the lineup includes Foil and Nonfoil alongside the standard finish. Across our catalog the Rarix library tracks every variant in the same family so collectors can compare price, scarcity and demand inside a single lineage.
Card #12 of *Teenage Mutant Ninja Turtles Eternal*, the set that shipped alongside the March 2026 Teenage Mutant Ninja Turtles Eternal release.
Card type: Legendary Creature — Human Mutant Shapeshifter, color identity blue, printed at rare. Rares occupy the bottom-of-pack rare slot in standard boosters. Mana cost: {2}{U} (3 converted).
Legal in Legacy, Vintage, Commander, Brawl, and Historic.
EDHrec ranks this card #5,095 in Commander, putting it in the niche-pick tier of the format's playable pool.
Illustrated by Mirko Failoni. Rarix catalogs 100 other cards credited to this artist.
Magic: The Gathering · ™ & © Wizards of the Coast · Illus. Mirko Failoni
Card data via Scryfall. Rarix is fan-made; not endorsed by the rights holders.
If the copied creature has {X} in its mana cost, X is 0.
If the copied creature is copying something else, then Irma becomes a copy of whatever that creature copied (with the listed exceptions).
