Spawning Pit + Wormfang Drake + Karmic Guide

Spawning Pit

Wormfang Drake

Karmic Guide

How it works

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