Complex sentence: The change removes his ability to use the Möbius continuum, leaving him with just deadspeak and telepathy, his mind wanes and he loses touch with his humanity, preferring to take the company of Starside/Sunside wolves.
Split into simpler sentences: The change removes his ability to use the Möbius continuum, leaving him with just Deadspeak and telepathy. His mind soon wanes and he loses touch with his humanity, preferring to take the company of Starside/Sunside wolves.