Isochron Scepter + Karn, the Great Creator + Vitalize

G identity

Commander legal

The 3 combo pieces

What must be in place

You control creatures that can tap to produce at least {3}.

How to execute it

  1. Activate Karn's first loyalty ability by adding a loyalty counter on it, causing Isochron Scepter to become an artifact creature until end of turn.
  2. Activate creatures you control by tapping those, adding at least {3}.
  3. Activate Isochron Scepter by paying {2} and tapping it, casting a copy of Vitalize without paying its mana cost, untapping all creatures.
  4. Repeat from step 2.

What the combo produces