Chainer, Dementia Master + Su-Chi + Chromatic Orrery + Angelic Chorus + Altar of Dementia

Chainer, Dementia Master

Su-Chi

Chromatic Orrery

Angelic Chorus

Altar of Dementia

How it works

1. Activate Altar of Dementia by sacrificing Su-Chi.
2. When Su-Chi dies, it triggers, adding CCCC.
3. Resolve the Altar of Dementia ability, causing target player to mill cards equal to Su-Chi's power.
4. Activate Chainer by paying 3 and 3 life, returning Su-Chi to the battlefield from your graveyard.
5. When Su-Chi enters the battlefield, Angelic Chorus triggers, causing you to gain life equal to Su-Chi's toughness.
6. Repeat.

This loop relies on Chainer, Dementia Master to continuously dredge Su-Chi out of your graveyard, utilizing the mana generated when Su-Chi dies to fuel the reanimation cost while Altar of Dementia mills your opponents to death. Because Chainer turns reanimated creatures into Nightmares, Su-Chi becomes a Nightmare that feeds Chainer's own pump effect, while Chromatic Orrery ensures that the colorless mana produced by Su-Chi can be freely filtered to pay for Chainer's black mana requirements. Meanwhile, Angelic Chorus turns every single resurrection cycle into a net-positive life swing, easily offsetting the life payment required by Chainer and ensuring you never run out of health to keep the loop going.