Dramatic Reversal + Rootha, Mercurial Artist + Vivien, Champion of the Wilds

GUR identity

Commander legal

The 3 combo pieces

What must be in place

Nonland permanents you control can tap to produce at least {3}{U}{R}.

How to execute it

  1. Activate all mana-producing nonland permanents you control by tapping them, adding at least {3}{U}{R}.
  2. Cast Dramatic Reversal by paying {1}{U}.
  3. Activate Rootha by paying {2} and returning it to your hand, copying Dramatic Reversal.
  4. Resolve the Dramatic Reversal copy, untapping all nonland permanents you control.
  5. Activate all mana-producing nonland permanents you control by tapping them, adding at least {3}{U}{R}.
  6. Cast Rootha by paying {1}{U}{R}.
  7. Repeat from step 3.
  8. If nonland permanents you control can tap to produce at least {4}{U}{R}, this combo nets infinite mana.

What the combo produces