Beifong's Bounty Hunters + Goblin Bombardment + Magus of the Bridge

Beifong's Bounty Hunters

Goblin Bombardment

Magus of the Bridge

How it works

1. Activate Goblin Bombardment by sacrificing another nonland creature.
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, Magus of the Bridge and Beifong's Bounty Hunters trigger.
6. Resolve the Beifong's Bounty Hunters trigger, returning the land from your graveyard to the battlefield.
7. Resolve the Magus of the Bridge trigger, creating a creature token.
8. Resolve the Goblin Bombardment ability.
9. Repeat.