Beifong's Bounty Hunters, Dwarven Mine, Yahenni, Undying Partisan, and Spelunking

Prerequisites

• Beifong's Bounty Hunters on the battlefield
• Dwarven Mine on the battlefield
• Yahenni, Undying Partisan on the battlefield
• Spelunking on the battlefield

Steps

1. Activate Yahenni by sacrificing another nonland creature you control
2. When the creature dies, Beifong's Bounty Hunters triggers, earthbending Dwarven Mine
3. Resolve the Yahenni ability, giving Yahenni indestructible until end of turn Activate Yahenni 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 Yahenni ability, giving Yahenni indestructible until end of turn Repeat

Results

• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers
• Infinite landfall triggers