Beifong's Bounty Hunters, Dwarven Mine, Spawning Pit, and Spelunking

Prerequisites

• Beifong's Bounty Hunters on the battlefield
• Dwarven Mine on the battlefield
• Spawning Pit on the battlefield
• Spelunking on the battlefield

Steps

1. Activate Spawning Pit by sacrificing another nonland creature you control
2. When the creature dies, Beifong's Bounty Hunters triggers, earthbending Dwarven Mine
3. Resolve the Spawning Pit ability, putting a charge counter on Spawning Pit Activate Spawning Pit by sacrificing Dwarven Mine
4. When Dwarven Mine dies, Beifong's Bounty Hunters triggers, returning Dwarven Mine from your graveyard to the battlefield untapped due to Spelunking When Dwarven Mine enters, it triggers, creating a 1/1 Dwarf creature token
5. Resolve the Spawning Pit ability, putting a charge counter on Spawning Pit Repeat

Results

• Infinite charge counters on a permanent
• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers
• Infinite landfall triggers