Ancient Den + Darksteel Citadel + Goblin Welder + Retreat to Coralhelm

URW identity

Commander legal

The 4 combo pieces

What must be in place

Goblin Welder does not have summoning sickness.

How to execute it

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

What the combo produces