Woe Strider + Woodfall Primus + Thran Vigil

Woe Strider

Woodfall Primus

Thran Vigil

How it works

1. Activate Woe Strider by sacrificing Woodfall Primus.
2. When Woodfall Primus dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
3. Thran Vigil and Woodfall Primus trigger.
4. Resolve the Thran Vigil trigger, putting a +1/+1 counter on Woodfall Primus.
5. Resolve the Woodfall Primus trigger, destroying target noncreature permanent.
6. Resolve the Woe Strider ability
7. Repeat.

This loop turns Woe Strider into a repeatable executioner by using its sacrifice outlet to feed the cycle, while Woodfall Primus handles the demolition work by wiping out every noncreature permanent your opponents control upon entry. Because Woodfall Primus features persist, it returns to the battlefield with a -1/-1 counter; however, Thran Vigil cleverly circumvents this drawback by automatically placing a +1/+1 counter on it whenever Woodfall Primus leaves the graveyard, neutralizing the -1/-1 counter through state-based actions. This allows the Primus to die repeatedly to Woe Strider's sacrifice ability without permanently accumulating counters, securing an endless loop of destruction and triggers.