Beifong's Bounty Hunters + Gravecrawler + Ashnod's Altar + Stone-Seeder Hierophant

Beifong's Bounty Hunters

Gravecrawler

Ashnod's Altar

Stone-Seeder Hierophant

How it works

1. Activate Ashnod's Altar by sacrificing Gravecrawler.
2. When Gravecrawler dies, Beifong's Bounty Hunters triggers, earthbending a land that can tap to produce at least .
3. Activate Ashnod's Altar by sacrificing the land.
4. When the land dies, Beifong's Bounty Hunters triggers, returning the land from your graveyard to the battlefield tapped.
5. When the land enters, Stone-Seeder Hierophant triggers, untapping it.
6. Holding priority, activate Stone-Seeder Hierophant by tapping it, untapping the land.
7. Activate the land by tapping it, adding at least .
8. Cast Gravecrawler from your graveyard by paying .
9. Repeat.