Color Identity: U

Prerequisites

  1.  
    Darksteel Citadel
    Darksteel Citadel     in exile (
    Darksteel Citadel
    Darksteel Citadel     exiled by
    Prototype Portal
    Prototype Portal    ).
  2.  All other permanents on the battlefield.
  3. Ensoul Artifact
    Ensoul Artifact     attached to
    Prototype Portal
    Prototype Portal    .
  4. Prototype Portal
    Prototype Portal     does not have summoning sickness.

Steps

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

Results

  1. Infinite colorless mana.
  2. Infinite
    Darksteel Citadel
    Darksteel Citadel     tokens.
  3. Infinite landfall triggers.

Metadata

  1. In 2 decks according to EDHREC.
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