Prerequisites
- Prototype Portal on the battlefield
- Retreat to Coralhelm on the battlefield
- Ensoul Artifact on the battlefield
- Darksteel Citadel in exile
- Ensoul Artifact attached to Prototype Portal
- Prototype Portal does not have summoning sickness
Steps
- Activate Prototype Portal by tapping it, creating a token copy of Darksteel Citadel
- When the Darksteel Citadel token enters the battlefield, Retreat to Coralhelm triggers, untapping Prototype Portal
- Repeat
Results
Required Cards 4
Retreat to Coralhelm
Enchantment
Ensoul Artifact
Enchantment — Aura
Darksteel Citadel
Artifact Land