Ashcoat of the Shadow Swarm is a mythic Legendary Creature — Rat Warlock card from Teenage Mutant Ninja Turtles Source Material (PZA), collector number 6. Current market price: $3.39 (foil $4.65), TCGplayer market prices via Scryfall.
Whenever Ashcoat attacks or blocks, other Rats you control get +X/+X until end of turn, where X is the number of Rats you control. At the beginning of your end step, you may mill four cards. If you do, return up to two Rat creature cards from your graveyard to your hand. (To mill a card, put the top card of your library into your graveyard.)
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