Beifong's Bounty Hunters + Altar of Dementia + Garrison Excavator

Beifong's Bounty Hunters

Altar of Dementia

Garrison Excavator

How it works

1. Activate Altar of Dementia by sacrificing another nonland creature you control.
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, Beifong's Bounty Hunters triggers, returning the land from your graveyard to the battlefield tapped.
6. Garrison Excavator triggers, creating a creature token.
7. Resolve the Altar of Dementia ability.
8. Repeat.