Beifong's Bounty Hunters + Phyrexian Altar + The Skullspore Nexus

Beifong's Bounty Hunters

Phyrexian Altar

The Skullspore Nexus

How it works

1. Activate Phyrexian Altar by sacrificing another nonland creature.
2. When the creature dies, Beifong's Bounty Hunters triggers, earthbending a land you control.
3. Activate Phyrexian Altar by sacrificing the earthbent land.
4. When the land dies, The Skullspore Nexus 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 The Skullspore Nexus trigger, creating a creature token.
7. Repeat.