Spectral Arcanist 15 (Commander: Innistrad: Crimson Vow)

Flying When this creature enters, you may cast an instant or sorcery spell with mana value less than or equal to the number of Spirits you control from a graveyard without paying its mana cost. If that spell would be put into a graveyard, exile it instead.

NM - $1.50
LP - $1.50
MP - $1.50
HP - $1.50
DMG - $1.50