Ekuril, the Returned

Indestructible, Flying
When Ekuril, the Returned enters the battlefield,
exile all cards in graveyards. You may cast them as
long as Ekuril, The Returned is on the battlefield
under your control, and you may spend mana as
though it were any color to cast them.
Whenever you cast a spell from exile,
this creature deals 1 damage to any target, then
you may pay {1}. If you do not, you lose 2 life.
Ekuril woke, and the continents burned.