Avatar of Woe (Invocation) [Amonkhet Invocations]

Set: Amonkhet Invocations Type: Creature — Avatar Rarity: Mythic Cost: {6}{B}{B} If there are ten or more creature cards total in all graveyards, this spell costs {6} less to cast.Fear (This creature can't be blocked except by artifact creatures and/or black creatures.){T}: Destroy target creature. It can't be regenerated.