Complex sentence: When Xena returns, he resumes his pursuit of her; enraged by her continuing rejection, he first encourages Livia to kill her, and then joins the other Olympians in their effort to kill Eve.
Split into simpler sentences: When Xena returns, he resumes his pursuit of her. Enraged by her continuing rejection, he first encourages Livia to kill her, and then joins the other Olympians in their effort to kill Eve.