Abundant Maw is a common Creature — Eldrazi Leech card from Innistrad Remastered (INR), collector number 1. Current market price: $0.16 (foil $0.14), TCGplayer market prices via Scryfall.
Emerge {6}{B} (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature's mana value.) When you cast this spell, target opponent loses 3 life and you gain 3 life.