Argothian Elder + Power Artifact + Sword of the Paruns

GU identity

Commander legal

The 3 combo pieces

What must be in place

Argothian Elder does not have summoning sickness. You control at least two mana-producing lands.
Sword of the Paruns attached to Argothian Elder

How to execute it

  1. Activate Argothian Elder by tapping it, untapping two lands.
  2. Activate two lands by tapping them, adding at least {2}.
  3. Activate Sword of the Paruns by paying {1}, untapping Argothian Elder.
  4. Repeat.

What the combo produces