Complex sentence: It is revealed that Brainiac learned to pass its code biologically and created Brainiac 5 as an organic being; unfortunately for Brainiac, Brainiac 5 rejected evil and joined the Legion of Super Heroes.
Split into simpler sentences: It is revealed that Brainiac learned to pass its code biologically and created Brainiac 5 as an organic being. Unfortunately for Brainiac, Brainiac 5 rejected evil and joined the Legion of Super Heroes.