Beifong's Bounty Hunters + Gravecrawler + Amulet of Vigor + Bloodflow Connoisseur

Beifong's Bounty Hunters

Gravecrawler

Amulet of Vigor

Bloodflow Connoisseur

How it works

1. Activate Bloodflow Connoisseur by sacrificing Gravecrawler.
2. When Gravecrawler dies, Beifong's Bounty Hunters triggers, earthbending a land that can tap to produce at least .
3. Resolve the Bloodflow Connoisseur ability.
4. Activate Bloodflow Connoisseur by sacrificing the land.
5. When the land dies, Beifong's Bounty Hunters triggers, returning the land from your graveyard to the battlefield tapped.
6. When the land enters, Amulet of Vigor triggers, untapping the land.
7. Resolve the Bloodflow Connoisseur ability.
8. Activate the land by tapping it, adding at least .
9. Cast Gravecrawler from your graveyard by paying .
10. Repeat.