Insatiable Frugivore

The entry trigger is a loop with a resource clamp welded into it: each Food generation offers to exile three cards from your graveyard, and only if you pay that cost does the process repeat. That yard is a finite fuel tank, so the number of Foods this makes is capped by how much has already spilled into the graveyard, which turns an unremarkable 2/4 body into a payoff that scales with a full turn of mill, sacrifice, and self-discard having already happened. The stats are deliberately flat because the output lives in the tokens, not the creature. The second half then spends those Foods as ammunition: plus sacrificing X of them hands your whole board +X/+0 and menace until end of turn, an activated pump with no restriction on when it fires. Holding the mana and the stockpile until the attack step is the whole point, because the buff only matters through your own combat: blow the reserve the moment it is lethal rather than telegraph it a turn early. The elegant part is the closed circuit between the two abilities: the graveyard fuels the Foods, and the Foods fuel the swing, so a resource most decks treat as slow lifegain becomes pressure the deck can actually convert. The menace clause is the tell that the second half was built to punch through a clogged board, and the graveyard cost on entry points you toward the kind of deck that was filling the yard anyway.