Beifong's Bounty Hunters + Ashnod's Altar + Sek'Kuar, Deathkeeper

Beifong's Bounty Hunters

Ashnod's Altar

Sek'Kuar, Deathkeeper

How it works

1. Activate Ashnod's Altar by sacrificing another nonland creature.
2. When the creature dies, Beifong's Bounty Hunters triggers, earthbending a land you control.
3. Activate Ashnod's Altar by sacrificing the earthbent land.
4. When the land dies, Sek'Kuar and Beifong's Bounty Hunters trigger.
5. Resolve the Beifong's Bounty Hunters trigger, returning the land from your graveyard to the battlefield.
6. Resolve the Sek'Kuar trigger, creating a creature token.
7. Repeat.