Traimzoj, Hydra Overlord

When Traimzoj, Hydra Overlord enters the battlefield, create 2 3/3 Hydra heads with when this creature dies, create 2 copies of this creature.
When Traimzoj, Hydra Overlord dies you may pay {6}. If you do, return this card from the graveyard to the battlefield. If Traimzoj, Hydra Overlord would be exiled, you may pay {2}. If you do, it goes to the graveyard instead.