Mortuary + Experimental Frenzy + Priest of Gix + Altar of Dementia

Mortuary

Experimental Frenzy

Priest of Gix

Altar of Dementia

How it works

1. Activate Altar of Dementia by sacrificing Priest of Gix.
2. When Priest of Gix dies, Mortuary triggers, putting Priest of Gix on top of your library from your graveyard.
3. Resolve the Altar of Dementia ability, causing target player to mill cards equal to Priest of Gix's power.
4. Cast Priest of Gix from the top of your library by paying 2.
5. When Priest of Gix enters the battlefield, it triggers, adding .
6. Repeat.

This loop relies on the seamless synergy between Altar of Dementia and Mortuary to continuously recycle your creatures, sending target player straight to an empty library. Experimental Frenzy is the engine that ties it all together, letting you cast spells directly from the top of your library so you can play the combo right back into existence. Finally, Priest of Gix acts as the crucial mana source and sacrifice fodder, generating enough black mana on each entry to pay for its own recurrence while driving the whole loop forward.