Beifong's Bounty Hunters + Phyrexian Altar + Ogre Slumlord

Beifong's Bounty Hunters

Phyrexian Altar

Ogre Slumlord

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, Ogre Slumlord 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 Ogre Slumlord trigger, creating a creature token.
7. Repeat.