Beifong's Bounty Hunters, Phyrexian Altar, and Totentanz, Swarm Piper

Prerequisites

• Beifong's Bounty Hunters on the battlefield
• Phyrexian Altar on the battlefield
• Totentanz, Swarm Piper on the battlefield

Steps

1. Activate Phyrexian Altar by sacrificing another nonland creature
2. When the creature dies, Beifong's Bounty Hunters triggers, earthbending a land you control
3. Activate Phyrexian Altar by sacrificing the earthbent land
4. When the land dies, Totentanz 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 Totentanz trigger, creating a creature token
7. Repeat

Results

• Infinite ETB
• Infinite LTB
• Infinite colored mana
• Infinite death triggers
• Infinite landfall triggers
• Infinite sacrifice triggers