Myojin of Cryptic Dreams, and Quarry Hauler

Prerequisites

• Myojin of Cryptic Dreams on the battlefield
• Quarry Hauler in hand
• available

Steps

1. Cast Quarry Hauler by paying its mana cost
2. Holding priority, activate Myojin by removing an indestructible counter from it, copying the Quarry Hauler spell three times
3. Resolve the first Quarry Hauler spell
4. When the Quarry Hauler token enters the battlefield, it triggers, putting an indestructible counter on Myojin
5. Repeat from step 2

Results

• Infinite ETB
• Infinite creature tokens
• Infinite proliferate
• Infinite copies of any permanent spells you control