Mortuary + Bolas's Citadel + Viscera Seer + Sephiroth, Fabled SOLDIER // Sephiroth, One-Winged Angel

Mortuary

Bolas's Citadel

Viscera Seer

Sephiroth, Fabled SOLDIER // Sephiroth, One-Winged Angel

How it works

1. Activate Viscera Seer by sacrificing it.
2. When Viscera Seer dies, Mortuary and Sephiroth, Fabled SOLDIER // Sephiroth, One-Winged Angel trigger.
3. Resolve the Mortuary trigger, putting Viscera Seer from your graveyard onto the top of your library.
4. Resolve the Sephiroth, Fabled SOLDIER // Sephiroth, One-Winged Angel trigger, causing you to gain 1 life and target 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 elegant loop is orchestrated by Bolas's Citadel, which turns the top of your library into your hand and swaps mana costs for life payments so you can continuously recast your threats. Viscera Seer provides the essential sacrifice outlet to bin your creatures, while Mortuary catches them on their way to the graveyard and immediately tucks them back onto the top of your library for the Citadel to replay. Meanwhile, Sephiroth, Fabled SOLDIER // Sephiroth, One-Winged Angel watches the carnage with its trigger, draining your opponents' life totals and padding your own life buffer every time a creature dies to fuel your Citadel payments indefinitely.