Whenever Isareth the Awakener attacks, you may pay X. When you do, return target creature card with mana value X from your graveyard to the battlefield with a corpse counter on it. If that creature would leave the battlefield, exile it instead of putting it anywhere else.
![Isareth the Awakener [Commander Masters]](http://www.cardmerchanttakapuna.co.nz/cdn/shop/files/fc2b5931-20ac-573e-ba68-cac2cafdbe39.png?v=1736608704&width=1445)