Axilis, Angel of Nothingness

Indestructible, flying, haste, doublestrike, lifelink
As an additional to cast this spell, discard all
cards, sacrifice all creatures and pay 10 life.
When Axilis, Angel of Nothingness enters the battlefield, exile all creatures in all graveyard
and gain X +1/+1 counter, X is the number of creatures exiled in this way.
At the beginning of your turn, pay 10 life or exile Axilis.