Sewer-veillance Cam, and Retraction Helix

Prerequisites

• Sewer-veillance Cam in hand
• Retraction Helix in hand
• available

Steps

1. Activate the mana-producing creature by tapping it, adding at least
2. Cast Retraction Helix by paying , targeting the mana-producing creature
3. Cast Sewer-veillance Cam by paying
4. When Sewer-veillance Cam enters, it triggers, untapping the creature targeted by Retraction Helix
5. Activate the creature targeted by Retraction Helix by tapping it, returning Sewer-veillance Cam from the battlefield to your hand
6. When Sewer-veillance Cam leaves the battlefield, it triggers, untapping the creature targeted by Retraction Helix
7. Activate the mana-producing creature by tapping it, adding at least
8. Repeat from step 3

Results

• Infinite storm count