Dross Scorpion + Emry, Lurker of the Loch + Mycosynth Lattice + Walking Ballista

U identity

Commander legal

The 4 combo pieces

What must be in place

Emry does not have summoning sickness.

How to execute it

  1. Activate Emry by tapping it, allowing you to cast Walking Ballista from your graveyard this turn.
  2. Cast Walking Ballista by paying {0}.
  3. Walking Ballista enters the battlefield and dies as a state-based action due to having zero toughness.
  4. Dross Scorpion triggers, untapping Emry.
  5. Repeat.

What the combo produces