S2E4: And the Story Begins

Guided by Finn, Will awakens the power sleeping within him. Enveloped in a silvery light, he slashes through the monsters in the capital, targeting the Devander. He faces the mage-slayer-wielding monster alone. The other students are moved as they watch Will, someone they scorned, do battle. With their cheers at his back, Will presses the fight, but the Devander’s attack breaks his sword in two.