Complex sentence: Phobos has a very interesting personality, combining the brain of a psychologist with that of a cold calculating mastermind in many ways appears to be insane, though most definitely egocentric as he wished to rule the universe.
Split into simpler sentences: Phobos has a very interesting personality, combining the brain of a psychologist with that of a cold calculating mastermind. In many ways he appears to be insane, though most definitely egocentric as he wished to rule the universe.