Jormungandr

When Jormungandr enters the battlefield, exile X target nonland permanents you don't control until Jormungandr leaves the battlefield. You may cast those cards for as long as they remain exiled, and you may spend mana as though it were any color to cast them.

{u}: Jormungandr cannot be blocked this turn. Activate this ability only if you cast a spell from exile this turn.