Beifong's Bounty Hunters + Umbral Collar Zealot + Magus of the Bridge

Beifong's Bounty Hunters

Umbral Collar Zealot

Magus of the Bridge

How it works

1. Activate Umbral Collar Zealot by sacrificing another nonland creature.
2. When the creature dies, Beifong's Bounty Hunters triggers, earthbending a land you control.
3. Resolve the Umbral Collar Zealot ability.
4. Activate Umbral Collar Zealot by sacrificing the earthbent land.
5. When the land dies, Magus of the Bridge 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 Magus of the Bridge trigger, creating a creature token.
8. Resolve the Umbral Collar Zealot ability.
9. Repeat.