Toph, the First Metalbender, Retreat to Emeria, Haru, Hidden Talent, and Tormod's Crypt

Prerequisites

• Toph, the First Metalbender on the battlefield
• Retreat to Emeria on the battlefield
• Haru, Hidden Talent on the battlefield
• Tormod's Crypt in hand

Steps

1. Cast Tormod's Crypt by paying its mana cost
2. When Tormod's Crypt enters, Retreat to Emeria triggers, creating a 1/1 Kor Ally creature token
3. When the Kor Ally enters, Haru triggers, earthbending Tormod's Crypt
4. Activate Tormod's Crypt by tapping and sacrificing it
5. Haru triggers, returning Tormod's Crypt from your graveyard to the battlefield
6. Repeat steps 2 and 3 once
7. Resolve the Tormod's Crypt ability from step 4
8. Repeat from step 4

Results

• Infinite ETB
• Infinite creature tokens
• Infinite landfall triggers