Wormfang Drake + Bloodthrone Vampire + Metamorphosis Fanatic

Wormfang Drake

Bloodthrone Vampire

Metamorphosis Fanatic

How it works

1. Cast Wormfang Drake by paying its mana cost.
2. When Wormfang Drake enters, its first ability triggers, exiling Metamorphosis Fanatic.
3. Activate Bloodthrone Vampire by sacrificing Wormfang Drake.
4. When Wormfang Drake dies, its second ability triggers, returning Metamorphosis Fanatic from exile to the battlefield.
5. When Metamorphosis Fanatic enters, it triggers, returning Wormfang Drake from your graveyard to the battlefield.
6. When Wormfang Drake enters, its first ability triggers, exiling Metamorphosis Fanatic.
7. Resolve the Bloodthrone Vampire ability.
8. Repeat from step 3.