Prototype Portal, Retreat to Coralhelm, Ensoul Artifact, and Treasure Vault

Prerequisites

• Prototype Portal on the battlefield
• Retreat to Coralhelm on the battlefield
• Ensoul Artifact on the battlefield
• Treasure Vault in exile
• Ensoul Artifact attached to Prototype Portal
• Prototype Portal does not have summoning sickness

Steps

1. Activate Prototype Portal by tapping it, creating a token copy of Treasure Vault
2. When the Treasure Vault token enters the battlefield, Retreat to Coralhelm triggers, untapping Prototype Portal
3. Repeat
4. Once you have infinite Treasure Vault tokens, you may tap them for infinite mana, and then use a Treasure Vault to create infinite Treasure toknes

Results

• Infinite colored mana
• Infinite colorless mana
• Infinite landfall triggers
• Infinite Treasure tokens
• Infinite Treasure Vault tokens