Original sentence: Mordred goes with Mab to defeat Arthur, however in the film's final battle Arthur and Mordred kill each other and Merlin and Mab lose their protegees and last hopes
Edited sentence: However, Arthur and Mordred kill each other in the film's last battle, and thus both Merlin and Mab lose their protegees and last hopes.Mordred goes with Mab to defeat Arthur, thus showing that he didn't love his mother the way most children do