Skullbriar, the Walking Grave + Illicit Masquerade + Perigee Beckoner + Altar of Dementia

Skullbriar, the Walking Grave

Illicit Masquerade

Perigee Beckoner

Altar of Dementia

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 Altar of Dementia by sacrificing Perigee Beckoner.
5. Activate Altar of Dementia 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 Altar of Dementia ability from step 5.
10. Repeat from step 3.

This clever loop relies on Skullbriar, the Walking Grave and its unique knack for holding onto counters across zone changes to fuel an endless cycle of sacrifice and return. By using Altar of Dementia to mill your library while churning through endless death and entering-the-battlefield triggers, you leverage Illicit Masquerade to pull Perigee Beckoner back out of the graveyard. In turn, Perigee Beckoner's entry trigger grants Skullbriar the necessary recursive safety net to keep the engine running indefinitely.