Mikaeus, the Unhallowed + Phyrexian Altar + Trapjaw Kelpie

BGU identity

Commander legal

The 3 combo pieces

How to execute it

  1. Activate Phyrexian Altar by sacrificing Trapjaw Kelpie.
  2. When Trapjaw Kelpie 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 Trapjaw Kelpie.
  4. When Trapjaw Kelpie 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