Shilgengar, Sire of Famine + Lesser Masticore + Thran Vigil

Shilgengar, Sire of Famine

Lesser Masticore

Thran Vigil

How it works

1. Activate Shilgengar by sacrificing Lesser Masticore.
2. When Lesser Masticore dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
3. Thran Vigil triggers, putting a +1/+1 counter on Lesser Masticore.
4. Resolve the Shilgengar ability.
5. Repeat.