Beifong's Bounty Hunters + Ashnod's Altar + Field of Souls

Beifong's Bounty Hunters

Ashnod's Altar

Field of Souls

How it works

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