Derevi, Empyrial Tactician + Displacer Kitten + Emry, Lurker of the Loch + Welding Jar

GWU identity

Commander legal

The 4 combo pieces

What must be in place

There is at least one additional artifact on the battlefield.

How to execute it

  1. Activate Emry by tapping it, targeting Welding Jar.
  2. Cast Welding Jar from your graveyard by paying {0}.
  3. Displacer Kitten triggers, blinking Derevi.
  4. When Derevi enters, it triggers, untapping Emry.
  5. Activate Welding Jar by sacrificing it.
  6. Repeat.

What the combo produces