Reins of Power + Sigil Tracer

Mana needed: {2}{U}{U}

U identity

Commander legal

The 2 combo pieces

What must be in place

You control at least three additional Wizards.
Creatures you control can tap to produce at least {2}{U}{U}.

How to execute it

  1. Cast Reins of Power by paying {2}{U}{U}.
  2. Holding priority, activate all mana-producing creatures you control by tapping them, adding at least {2}{U}{U}.
  3. Activate Sigil Tracer twice by paying {2}{U}{U}, tapping it and three other Wizards you control, copying Reins of Power twice.
  4. Resolve the first copy of Reins of Power, untapping all creatures you and target opponent control, and exchanging control of those creatures.
  5. Resolve the second copy of Reins of Power, untapping all creatures you and target opponent control, and exchanging control of those creatures, causing you to regain control of all the creatures you originally controlled.
  6. Repeat from step 2.
  7. If creatures you control can tap to produce at least {3}{U}{U}, this combo nets infinite mana.

What the combo produces