The Healer Who Was Banished from His Party, Is, in Fact, the Strongest S01 E04 Regarding the Rescue, Which Is, in Fact, a Farewell

With a new swordsman beside him, Margulus stubbornly tries to slay the hydra again. The Blades of Lightning members slowly make progress against the monster, but by the time Laust arrives on the scene, the hydra has undergone a terrifying transformation.