Sanguine Savior
From Murders at Karlov Manor set
Sanguine Savior
Creature — Vampire Cleric
2/1
Flying, lifelink
Disguise (You may cast this card face down for as a 2/2 creature with ward . Turn it face up any time for its disguise cost.)
When this creature is turned face up, another target creature you control gains lifelink until end of turn.