Grenzo, Dungeon Warden + Soldevi Digger + Su-Chi + Altar of Dementia

Grenzo, Dungeon Warden

Soldevi Digger

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 Soldevi Digger 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 loop transforms a tidy recycling plant into a game-ending engine, anchored by Grenzo, Dungeon Warden reaching deep into the library to rescue what has fallen. When you sacrifice Su-Chi to Altar of Dementia, its death triggers a massive influx of four colorless mana, more than enough to fund the operation while simultaneously turning Su-Chi's power into a relentless mill wave against your opponents. To keep the cycle spinning, Soldevi Digger steps in to tuck the fallen construct safely back onto the bottom of your library. From there, Grenzo, Dungeon Warden uses its activated ability to pluck Su-Chi right back onto the battlefield, ready to be sacrificed all over again for an infinite cascade of deaths and mill.