Ulamog, the Infinite Gyre{11}

Legendary Creature — Eldrazi

When you cast this spell, destroy target permanent.
Indestructible
Annihilator 4 (Whenever this creature attacks, defending player sacrifices four permanents.)
When Ulamog, the Infinite Gyre is put into a graveyard from anywhere, its owner shuffles their graveyard into their library.

10/10

Illustrated by Aleksi Briclot