Mikaeus, the Unhallowed + Phyrexian Altar + Wingrattle Scarecrow

B identity

Commander legal

The 3 combo pieces

How to execute it

  1. Activate Phyrexian Altar by sacrificing Wingrattle Scarecrow.
  2. When Wingrattle Scarecrow dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
  3. Activate Phyrexian Altar by sacrificing Wingrattle Scarecrow.
  4. When Wingrattle Scarecrow dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
  5. Repeat.

What the combo produces