Koll, the Forgemaster, Sai of the Shinobi, Phyrexian Walker, and Goblin Bombardment

Prerequisites

• Koll, the Forgemaster on the battlefield
• Sai of the Shinobi on the battlefield
• Phyrexian Walker in hand
• Goblin Bombardment on the battlefield

Steps

1. Cast Phyrexian Walker by paying
2. When Phyrexian Walker enters the battlefield, Sai of the Shinobi triggers, attaching Sai of the Shinobi to Phyrexian Walker
3. Activate Goblin Bombardment by sacrificing Phyrexian Walker
4. When Phyrexian Walker dies, Koll triggers, returning Phyrexian Walker from your graveyard to your hand
5. Resolve the Goblin Bombardment ability, dealing 1 damage to any target
6. Repeat

Results

• Infinite damage
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers
• Infinite storm count