Insatiable Frugivore is a rare Creature — Rat Berserker card from Bloomburrow Commander (BLC), collector number 18. Current market price: $0.19, TCGplayer market prices via Scryfall.
When this creature enters, create a Food token, then you may exile three cards from your graveyard. If you do, repeat this process. {3}{B}, Sacrifice X Foods: Creatures you control get +X/+0 and gain menace until end of turn.