Slayers Episode 21 English Dubbed episodes and free chapters. English Dubbed Episode guide, chapter Slayers Episode 21 UPSET! Gourry vs. Zangulus. Lina, Gourry, Amelia and Sylphiel get to Rezo’s museum. They break the seal by the Sword of Light, and look for Rezo’s secret in the underground chamber. They are caught in a trap set by Eris, and are separated. While Lina is looking for Gourry and Amelia, Sylphiel asks her the relationship between her and Gourry. She tries not to show any feeling for Gourry other than a mere friendship. In the meantime, Gourry is in the middle of man-to-man battle with Zangulus. He is cornered by the strong opponent, but he exerts the full force of his Sword of Light and destroys Zangulus.