Mirran Spy + Priest of Yawgmoth + Spine of Ish Sah

UB identity

Commander legal

The 3 combo pieces

What must be in place

Priest of Yawgmoth does not have summoning sickness.

How to execute it

  1. Activate Priest of Yawgmoth by tapping and sacrificing Spine of Ish Sah, adding seven {B}.
  2. Spine of Ish Sah triggers, returning itself from your graveyard to your hand.
  3. Cast Spine of Ish Sah by paying {7}.
  4. Mirran Spy triggers, untapping Priest of Yawgmoth.
  5. Spine of Ish Sah enters the battlefield, destroying target permanent.
  6. Repeat.

What the combo produces