Ensoul Artifact + Prototype Portal + Retreat to Coralhelm + Vault of Whispers

UB identity

Commander legal

The 4 combo pieces

What must be in place

Ensoul Artifact attached to Prototype Portal.
Prototype Portal does not have summoning sickness.

How to execute it

  1. Activate Prototype Portal by tapping it, creating a token copy of Vault of Whispers.
  2. When the Vault of Whispers token enters the battlefield, Retreat to Coralhelm triggers, untapping Prototype Portal.
  3. Repeat.

What the combo produces