Initial Card State
- Seat of the Synod 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 Ancient Den and return Seat of the Synod from your graveyard to the battlefield.
- Seat of the Synod enters the battlefield, triggering Retreat to Coralhelm, untapping Goblin Welder.
- Activate Seat of the Synod by tapping it, adding ({U} magic symbol)
. - Activate Goblin Welder by tapping it, causing you to sacrifice Seat of the Synod and return Ancient Den from your graveyard to the battlefield.
- Ancient Den enters the battlefield, triggering Retreat to Coralhelm, untapping Goblin Welder.
- Activate Ancient Den by tapping it, adding ({W} magic symbol)
. - Repeat.
Results
- Infinite blue mana.
- Infinite landfall triggers.
- Infinite white mana.
Bracket Tag
This combo has been estimated to be Exhibition (Bracket 1+).