Complex sentence: After subsequent battles with Angel's evil alter-ego Angelus and later the primordial First Evil with Buffy, Faith's has developed as a heroine in her own right, now seeking to save the souls of those who have lost their way.
Split into simpler sentences: After subsequent battles with Angel's evil alter-ego Angelus and later the primordial First Evil with Buffy, Faith's has developed as a heroine in her own right. Following Angel's examples, Faith now seek to save the souls of those who have lost their way.