Feed the Cycle is a uncommon Instant card from Bloomburrow (BLB), collector number 94. Current market price: $0.29 (foil $0.36), TCGplayer market prices via Scryfall.
As an additional cost to cast this spell, forage or pay {B}. (To forage, exile three cards from your graveyard or sacrifice a Food.) Destroy target creature or planeswalker.