Midnight Guard, Retraction Helix, and Dockside Extortionist

Prerequisites

• Midnight Guard on the battlefield
• Retraction Helix in hand
• Dockside Extortionist in hand
• Midnight Guard does not have summoning sickness
• Opponents control at least three artifacts and/or enchantments
• available

Steps

1. Cast Dockside Extortionist by paying
2. Dockside Extortionist enters the battlefield, triggering itself and Midnight Guard
3. Resolve the Dockside Extortionist trigger, creating at least three Treasure tokens
4. Resolve the Midnight Guard trigger, untapping it
5. Activate three Treasure tokens by tapping and sacrificing them, adding
6. Cast Retraction Helix by paying , targeting Midnight Guard
7. Activate Midnight Guard by tapping it, returning Dockside Extortionist from the battlefield to your hand
8. Cast Dockside Extortionist by paying
9. Dockside Extortionist enters the battlefield, triggering itself and Midnight Guard
10. Resolve the Dockside Extortionist trigger, creating at least three Treasure tokens
11. Resolve the Midnight Guard trigger, untapping it
12. Activate two Treasure tokens by tapping and sacrificing them, adding
13. Repeat from step 7

Results

• Infinite colored mana
• Infinite ETB
• Infinite LTB
• Infinite storm count
• Infinite Treasure tokens