Baloth Prime + Beifong's Bounty Hunters + Goblin Bombardment

Baloth Prime

Beifong's Bounty Hunters

Goblin Bombardment

How it works

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

This loop turns a simple sacrifice into a devastating engine of destruction by putting Beifong's Bounty Hunters and Goblin Bombardment to work alongside your lands. When you sacrifice a creature to Goblin Bombardment, Beifong's Bounty Hunters earthbends one of your lands into a temporary creature that you can immediately sacrifice to Goblin Bombardment as well. That dying land triggers Baloth Prime, which untaps itself to keep pace and churns out a 4/4 green Beast creature token to fuel the next iteration.