Retraction Helix, and Steelfin Whale

Prerequisites

• Retraction Helix in hand
• Steelfin Whale on the battlefield
• available

Steps

1. Cast Retraction Helix by paying , targeting Steelfin Whale
2. Activate Steelfin Whale by tapping it, returning the artifact from the battlefield to your hand
3. Cast the artifact by paying
4. When the artifact enters the battlefield, Steelfin Whale triggers, untapping Steelfin Whale
5. Repeat from step 2

Results

• Infinite LTB
• Infinite ETB
• Infinite storm count