Complex sentence: Though he is with the Jadow, Alastor doesn't give much thought about his position, but instead longs to seek out "the ultimate battle", and can be considered an "anti-hero" to an extent.
Split into simpler sentences: Though he is allied with Jadow, Alastor doesn't give much thought about his position. Instead he longs to seek out "the ultimate battle", and can be considered an "anti-hero" to an extent.