Complex sentence: Phobos eventually reveals her true heritage and abducts her to Meridian, but only to claim her power for his own, and thanks to his lies, Elyon gets the impression the Guardians are the enemies at the beginning.
Split into simpler sentences: Phobos eventually reveals her true heritage and abducts her to Meridian, but only to claim her power for his own. Thanks to his lies, Elyon gets the impression the Guardians are the enemies at the beginning.