Complex sentence: The third chapter, illustrated by Ben Oliver, The Just "features a world of legacy characters and children of superheroes from Earth-16, such as Connor Hawke and the Super-Sons:" this is those guys but they're not the main heroes.
Split into simpler sentences: The third chapter, illustrated by Ben Oliver, The Just "features a world of legacy characters and children of superheroes from Earth-16, such as Connor Hawke and the Super-Sons." This is those guys but they're not the main heroes.