Gravelgill Axeshark + Mikaeus, the Unhallowed + Viscera Seer

UB identity

Commander legal

The 3 combo pieces

How to execute it

  1. Activate Viscera Seer by sacrificing Gravelgill Axeshark.
  2. When Gravelgill Axeshark dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
  3. Resolve the Viscera Seer ability.
  4. Activate Viscera Seer by sacrificing Gravelgill Axeshark.
  5. When Gravelgill Axeshark dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
  6. Resolve the Viscera Seer ability.
  7. Repeat.

What the combo produces