Complex sentence: The figure reveals himself as Quill's father, Ego who invites Quill, accompanied by Gamora and Drax, to his home planet, while Rocket and Groot remain behind to repair the ship and guard Nebula.
Split into simpler sentences: The figure reveals himself as Quill's father, Ego. He invites Quill, accompanied by Gamora and Drax, to his home planet, while Rocket and Groot remain behind to repair the ship and guard Nebula.