Color Identity: U, R


Initial Card State
- Darksteel Citadel in your graveyard.
- All other permanents on the battlefield.
Notable Prerequisites
- Goblin Welder does not have summoning sickness.
Steps
- Activate Goblin Welder by tapping it, causing you to sacrifice Great Furnace and return Darksteel Citadel from your graveyard to the battlefield.
- Darksteel Citadel enters the battlefield, triggering Retreat to Coralhelm, untapping Goblin Welder.
- Activate Darksteel Citadel by tapping it, adding ({C} magic symbol)
. - Activate Goblin Welder by tapping it, causing you to sacrifice Darksteel Citadel and return Great Furnace from your graveyard to the battlefield.
- Great Furnace enters the battlefield, triggering Retreat to Coralhelm, untapping Goblin Welder.
- Activate Great Furnace by tapping it, adding ({R} magic symbol)
. - Repeat.
Results
- Infinite colorless mana.
- Infinite landfall triggers.
- Infinite red mana.
Bracket Tag
This combo has been estimated to be Exhibition (Bracket 1+).