Hullbreaker Horror + Mox Amber

U identity

Commander legal

The 2 combo pieces

What must be in place

You control a legendary creature that has a color that matches the mana symbol in the other permanent's mana cost.

How to execute it

  1. Activate Mox Amber by tapping it, adding {1}.
  2. Cast the permanent by paying at most one colored mana.
  3. Hullbreaker Horror triggers, returning Sol Ring from the battlefield to your hand.
  4. Cast Mox Amber by paying {0}
  5. Hullbreaker Horror triggers, returning the permanent cast in step 2 from the battlefield to your hand.
  6. Repeat.

What the combo produces