Complex sentence: He is lied to by a man in the shadows, and thinking Shadowhawk is the son of Firepower, he starts a fight with Shadowhawk, but Shadowhawk sees Blacklight's weakness and kills him.
Split into simpler sentences: He is lied to by a man in the shadows, thinking ShadowHawk is the son of Firepower. He starts a fight with ShadowHawk, but ShadowHawk sees Blacklight's weakness and kills him.