Beifong's Bounty Hunters + Gutter Grime + Altar of Dementia

Beifong's Bounty Hunters

Gutter Grime

Altar of Dementia

How it works

1. Activate Altar of Dementia by sacrificing another nonland creature.
2. When the creature dies, Beifong's Bounty Hunters triggers, earthbending a land you control.
3. Resolve the Altar of Dementia ability.
4. Activate Altar of Dementia by sacrificing the earthbent land.
5. When the land dies, Gutter Grime and Beifong's Bounty Hunters trigger.
6. Resolve the Beifong's Bounty Hunters trigger, returning the land from your graveyard to the battlefield.
7. Resolve the Gutter Grime trigger, creating a creature token.
8. Resolve the Altar of Dementia ability.
9. Repeat.

This grisly loop uses Altar of Dementia as a sacrificial engine to convert your creatures into a relentless wave of mill, fueling itself through a clever recycling loop. When you sacrifice a creature to the Altar, Beifong's Bounty Hunters triggers to animate one of your lands into a massive elemental via earthbending, which you can then sacrifice right back to Altar of Dementia to mill your opponent further. Because Gutter Grime watches every single nontoken creature bite the dust, it steadily accumulates slime counters to spawn ever-growing Ooze tokens while Beifong's Bounty Hunters simultaneously ensures your sacrificed land bounces straight back to the battlefield to restart the carnage.