The Cheetah Planet

Planechase design rarely hands you a repeatable board-state upgrade, but this one does something stranger: it turns whatever you control into cats. The upkeep trigger both grows a creature and grafts the Cat type onto it, which means the plane slowly assembles a tribe that did not exist when you planeswalked in. That conversion is the whole conceit. Provoke, historically a red-and-green combat keyword that forces a chosen blocker into a bad fight, becomes the plane's chaos payoff, and it only rewards you for the tribe the plane itself is manufacturing. So the two abilities feed one another across a game: every upkeep adds a Cat and two counters, and every chaos roll lets that growing pride drag the defending player's creatures into combat one at a time. The design leans on Planechase's rhythm rather than fighting it. You are not building a Cat deck to visit here; the plane is building the Cat deck around whatever happens to be on the battlefield, and the longer you stay the more lopsided the forced-block math gets. It is a flavor conceit (a world where things become cats) rendered as a genuine mechanical loop, and provoke is what redeems the transformation from cosmetic novelty: a synthetic pride is only worth assembling if you can point it at the blocks the opponent least wants to make.