Sidisi, Regent of the Mire + Thornbite Staff + Spawning Pit

Sidisi, Regent of the Mire

Thornbite Staff

Spawning Pit

How it works

1. Activate Sidisi by tapping it and sacrificing the creature with mana value 0.
2. When the creature dies, Sidisi triggers, untapping Sidisi.
3. Resolve the Sidisi ability, returning the creature that creates creature token(s) on death from your graveyard to the battlefield.
4. Activate Spawning Pit by sacrificing the creature.
5. When the creature dies, it and Sidisi trigger.
6. Resolve the Sidisi trigger, untapping it.
7. Resolve the creature's trigger, creating at least one creature token.
8. Resolve the Spawning Pit ability.
9. Repeat.