Grenzo, Dungeon Warden + Transplant Theorist + Su-Chi + Altar of Dementia

Grenzo, Dungeon Warden

Transplant Theorist

Su-Chi

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 Transplant Theorist by paying 2, putting Su-Chi on the bottom of your library from your graveyard.
5. Activate Grenzo by paying 2, putting Su-Chi into your graveyard from the bottom of your library, and then putting it onto the battlefield.
6. Repeat.

This clever loop sets up an endless cycle of sacrifice and resurrection, fueled by the colorless mana generated whenever Su-Chi hits the graveyard. By feeding Su-Chi to Altar of Dementia, you mill your opponent while triggering Su-Chi's death ability to pay for the rest of the machinery. Transplant Theorist steps in to recycle Su-Chi right back to the bottom of your library, and Grenzo, Dungeon Warden uses that positioning to pull Su-Chi straight back onto the battlefield to do it all over again.