Color Identity: U, R, W

Prerequisites

  1.  
    Darksteel Citadel
    Darksteel Citadel     in your graveyard.
  2.  All other permanents on the battlefield.
  3. Goblin Welder
    Goblin Welder     does not have summoning sickness.

Steps

  1. Activate
    Goblin Welder
    Goblin Welder     by tapping it, causing you to sacrifice
    Ancient Den
    Ancient Den     and return
    Darksteel Citadel
    Darksteel Citadel     from your graveyard to the battlefield.
  2. Darksteel Citadel
    Darksteel Citadel     enters the battlefield, triggering
    Retreat to Coralhelm
    Retreat to Coralhelm    , untapping
    Goblin Welder
    Goblin Welder    .
  3. Activate
    Darksteel Citadel
    Darksteel Citadel     by tapping it, adding ({C} magic symbol)  .
  4. Activate
    Goblin Welder
    Goblin Welder     by tapping it, causing you to sacrifice
    Darksteel Citadel
    Darksteel Citadel     and return
    Ancient Den
    Ancient Den     from your graveyard to the battlefield.
  5. Ancient Den
    Ancient Den     enters the battlefield, triggering
    Retreat to Coralhelm
    Retreat to Coralhelm    , untapping
    Goblin Welder
    Goblin Welder    .
  6. Activate
    Ancient Den
    Ancient Den     by tapping it, adding ({W} magic symbol)  .
  7. Repeat.

Results

  1. Infinite colorless mana.
  2. Infinite landfall triggers.
  3. Infinite white mana.

Metadata

  1. In 7 decks according to EDHREC.
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