Eternal Scourge + Heartless Summoning + Portcullis + Prosper, Tome-Bound

Mana needed: {1} plus an additional {1} available if Eternal Scourge is in hand

BR identity

Commander legal

The 4 combo pieces

How to execute it

  1. Cast Eternal Scourge either from your hand or from exile by paying {1}.
  2. If you played Eternal Scourge from exile, Prosper's second ability triggers, creating a Treasure token.
  3. Eternal Scourge enters the battlefield, triggering Portcullis, exiling Eternal Scourge.
  4. If you created a Treasure token, activate it by tapping and sacrificing it, adding {1}.
  5. Repeat.

What the combo produces