Beifong's Bounty Hunters + Altar of Dementia + Rat King, Pale Piper

Beifong's Bounty Hunters

Altar of Dementia

Rat King, Pale Piper

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, Rat King 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 Rat King trigger, creating a creature token.
8. Resolve the Altar of Dementia ability.
9. Repeat.

This clever loop turns the cycle of life, death, and land animation into an endless engine of mill and battlefield triggers. By feeding creatures to Altar of Dementia, you trigger Beifong's Bounty Hunters to temporarily turn one of your lands into a massive, earthbent creature that can itself be sacrificed to the Altar. When that land hits the graveyard, Rat King, Pale Piper swoops in with a replacement Rat token while Beifong's Bounty Hunters instantly returns the land to the battlefield ready to repeat the process.