Retraction Helix + Sewer-veillance Cam

Mana needed: {U}

U identity

Commander legal

The 2 combo pieces

What must be in place

You control a creature that doesn't have summoning sickness and that can tap to produce at least {U}.

How to execute it

  1. Activate the mana-producing creature by tapping it, adding at least {U}.
  2. Cast Retraction Helix by paying {U}, targeting the mana-producing creature.
  3. Cast Sewer-veillance Cam by paying {U}.
  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 {U}.
  8. Repeat from step 3.

What the combo produces