Skullbriar, the Walking Grave + Illicit Masquerade + Perigee Beckoner + Spawning Pit

Skullbriar, the Walking Grave

Illicit Masquerade

Perigee Beckoner

Spawning Pit

How it works

1. Cast Illicit Masquerade by paying 3. When it enters, its first ability triggers, putting an impostor counter on Skullbriar.
2. Cast Perigee Beckoner for its warp cost by paying 1.
3. When Perigee Beckoner enters, it triggers, targeting Skullbriar.
4. Activate Spawning Pit by sacrificing Perigee Beckoner.
5. Activate Spawning Pit by sacrificing Skullbriar.
6. When Skullbriar dies, Illicit Masquerade's second ability and Skullbriar's ability granted to it by Perigee Beckoner trigger.
7. Resolve the Skullbriar trigger, returning it from your graveyard to the battlefield.
8. Resolve the Illicit Masquerade trigger, failing to exile Skullbriar as it has left your graveyard and returning Perigee Beckoner from your graveyard to the battlefield.
9. Resolve the Spawning Pit ability from step 5.
10. Repeat from step 3.