Mikaeus, the Unhallowed + Shilgengar, Sire of Famine + Lingering Tormentor

Mikaeus, the Unhallowed

Shilgengar, Sire of Famine

Lingering Tormentor

How it works

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