Filigree Sages + Power Artifact + Prototype Portal + and 2 others

GU identity

Commander legal

The 5 combo pieces

What must be in place

Power Artifact attached to Filigree Sages.

How to execute it

  1. Activate Prototype Portal by paying {0} and tapping it, creating a token copy of Tanglepool Bridge.
  2. When Tanglepool Bridge enters the battlefield, Tiller Engine triggers, untapping it.
  3. Activate the Tanglepool Bridge token by tapping it, adding {U}.
  4. Activate Filigree Sages by paying {U}, untapping Prototype Portal.
  5. Repeat.

What the combo produces