The Shifting Mound

Indestructible, Hexproof

The Shifting Mound's power and toughness are equal to the number of cards you own in exile or in your graveyard

At the beginning of combat on your turn, return one creature from your graveyard or exile to the battlefield. It gains haste. Sacrifice it at the beginning of your end step.

"To destroy is merely to reshape. To remold"