Diviner of Mist (Extended Art) [Tarkir: Dragonstorm Commander]

Set: Tarkir: Dragonstorm Commander Type: Creature — Dragon Rarity: Rare Cost: {4}{U} FlyingWhenever this creature attacks, mill four cards. You may cast an instant or sorcery spell from your graveyard with mana value 4 or less without paying its mana cost. If that spell would be put into your graveyard, exile it instead.