Mikaeus, the Unhallowed + Soulstinger + Yahenni, Undying Partisan

B identity

Commander legal

The 3 combo pieces

How to execute it

  1. Activate Yahenni by sacrificing Soulstinger.
  2. When Soulstinger dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
  3. When Soulstinger enters the battlefield, it triggers, putting a -1/-1 counter on it.
  4. Resolve the Yahenni ability
  5. Repeat.

What the combo produces