Cheering Fanatic + Corridor Monitor + Retraction Helix + Urza, Lord High Artificer

Mana needed: {U}{U}

UR identity

Commander legal

The 4 combo pieces

How to execute it

  1. Declare Cheering Fanatic as an attacker. When it triggers, choose to name "Corridor Monitor".
  2. Cast Retraction Helix by paying {U}, targeting a creature you control that doesn't have summoning sickness.
  3. Cast Corridor Monitor by paying {U} due to Cheering Fanatic.
  4. When Corridor Monitor enters, it triggers, untapping the creature targeted by Retraction Helix.
  5. Activate Urza's first ability by tapping Corridor Monitor, adding {U}.
  6. Activate the creature targeted by Retraction Helix by tapping it, returning Corridor Monitor from the battlefield to your hand.
  7. Repeat from step 3

What the combo produces