Geist of Saint Traft is a mythic Legendary Creature — Spirit Cleric card from Magic Online Promos (PRM), collector number 60484.
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.