Cavern Harpy + Oltec Matterweaver + Xorn

Mana needed: {U}{B}

WUBR identity

Commander legal

The 3 combo pieces

What must be in place

You control at least one Treasure token.

How to execute it

  1. Cast Cavern Harpy by paying {U}{B}.
  2. Oltec Matterweaver triggers, creating two token copies of any Treasure token you control.
  3. When Cavern Harpy enters the battlefield, it triggers, returning itself from the battlefield to your hand.
  4. Activate two Treasures by tapping and sacrificing them, adding {U}{B}.
  5. Repeat.

What the combo produces