Wretched Gryff is a common Creature — Eldrazi Hippogriff card from Eldritch Moon (EMN), collector number 12. Current market price: $0.08 (foil $0.47), TCGplayer market prices via Scryfall.
Emerge {5}{U} (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, draw a card. Flying