Mortuary + Bolas's Citadel + Viscera Seer + Cruel Celebrant

Mortuary

Bolas's Citadel

Viscera Seer

Cruel Celebrant

How it works

1. Activate Viscera Seer by sacrificing it.
2. When Viscera Seer dies, Mortuary and Cruel Celebrant trigger.
3. Resolve the Mortuary trigger, putting Viscera Seer from your graveyard onto the top of your library.
4. Resolve the Cruel Celebrant trigger, causing you to gain 1 life and each opponent to lose 1 life.
5. Resolve the Viscera Seer ability.
6. Cast Viscera Seer from the top of your library by paying 1 life.
7. Repeat.

This clever loop harnesses the top-deck manipulation of Mortuary and Viscera Seer to churn through your library with Bolas's Citadel, replacing traditional mana costs with life payments. As you repeatedly sacrifice and recast your creatures, Cruel Celebrant turns each iteration into a lethal drain on your opponents while offsetting the life spent on the Citadel.