Ashnod's Altar + Corpse Dance + Witch Engine

B identity

Commander legal

The 3 combo pieces

How to execute it

  1. Activate Witch Engine by tapping it, targeting any opponent.
  2. Holding priority, activate Ashnod's Altar by sacrificing Witch Engine, adding {C}{C}.
  3. Resolve the Witch Engine ability, adding {B}{B}{B}{B} and not giving control of Witch Engine to an opponent due to it no longer being on the battlefield.
  4. Cast Corpse Dance with buyback by paying {4}{B}, returning Witch Engine from your graveyard to the battlefield with haste, and returning Corpse Dance to your hand.
  5. Repeat.

What the combo produces