Woe Strider + Thran Vigil + Rendclaw Trow

Woe Strider

Thran Vigil

Rendclaw Trow

How it works

1. Activate Woe Strider by sacrificing Rendclaw Trow.
2. When Rendclaw Trow 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 Rendclaw Trow.
4. Resolve the Woe Strider ability.
5. Repeat.