Ashnod's Altar + Eternal Scourge + Nightmare Shepherd

B identity

Commander legal

The 3 combo pieces

How to execute it

  1. Activate Ashnod's Altar by sacrificing Eternal Scourge, adding {C}{C}.
  2. Nightmare Shepherd triggers.
  3. Resolve the Nightmare Shepherd trigger, exiling Eternal Scourge from your graveyard and creating a 1/1 copy of Eternal Scourge that is a Nightmare in addition to its other types.
  4. Activate Ashnod's Altar by sacrificing the Eternal Scourge token, adding {C}{C}.
  5. Cast Eternal Scourge from exile by paying {3}.
  6. Repeat.

What the combo produces