Spawning Pit + Wormfang Drake + Angel of Indemnity

Spawning Pit

Wormfang Drake

Angel of Indemnity

How it works

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