Mirran Spy, Retraction Helix, Phyrexian Walker, and Reckless Fireweaver

Prerequisites

• Mirran Spy on the battlefield
• Retraction Helix in hand
• Phyrexian Walker on the battlefield
• Reckless Fireweaver on the battlefield
• Reckless Fireweaver does not have summoning sickness
• available

Steps

1. Cast Retraction Helix by paying , targeting Reckless Fireweaver
2. Activate Reckless Firereweaver by tapping it, returning Phyrexian Walker from the battlefield to your hand
3. Reckless Fireweaver triggers, dealing 1 damage to each opponent
4. Cast Phyrexian Walker by paying
5. Mirran Spy triggers, untapping Reckless Fireweaver
6. Repeat from step 2

Results

• Infinite damage
• Infinite ETB
• Infinite LTB
• Infinite storm count
• Infinite tap triggers