Geist of Saint Traft is a mythic Legendary Creature — Spirit Cleric card from Innistrad (ISD), collector number 213. Current market price: $0.67 (foil $10.04), TCGplayer market prices via Scryfall.
Hexproof (This creature can't be the target of spells or abilities your opponents control.) Whenever Geist of Saint Traft attacks, create a 4/4 white Angel creature token with flying that's tapped and attacking. Exile that token at end of combat.