Woe Strider + Lesser Masticore + Thran Vigil

Woe Strider

Lesser Masticore

Thran Vigil

How it works

1. Activate Woe Strider 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 Woe Strider ability.
5. Repeat.