Call of the Void

Indestructible, Hexproof
When Call of the Void enters the battlefield, exile all other permanents until Call of the Void leaves the battlefield.
{x}{b}{b}{p/b}{t}You may cast any card exiled with Call of the Void without paying it's mana cost. You lose 2 life. Any player may activate this ability.
{b}{b}{b}{b}{b}: Exile Call of the Void. You lose 8 life. Any player may activate this ability.