Complex sentence: Like the original runaways, Victor has a supervillain for a parent but he also has a superhero for a grandparent; his father is the robot Ultron and his grandfather is the superhero Dr. Henry "Hank" Pym, and his brother being the superhero Vision.
Split into simpler sentences: Like the original Runaways, Victor has a supervillain for a parent but he also has a superhero for a grandparent. In other words, his father is the robot Ultron and his grandfather is the superhero Dr. Henry "Hank" Pym while his brother is the superhero Vision.