Baloth Prime + Beifong's Bounty Hunters + Thermopod

Baloth Prime

Beifong's Bounty Hunters

Thermopod

How it works

1. Activate Thermopod by sacrificing another nonland creature you control.
2. When the creature dies, Beifong's Bounty Hunters triggers, earthbending a land you control.
3. Activate Thermopod by sacrificing the earthbent land.
4. When the land dies, it and Baloth Prime trigger.
5. Resolve the land's trigger, returning it from your graveyard to the battlefield tapped.
6. Resolve the Baloth Prime trigger, untapping it and creating a tapped 4/4 Beast creature token.
7. Repeat.