I dearly love Flex Mentallo. The only trouble is, there isn't enough of him. He's made some appearances in Doom Patrol, and a small mini series and that's it. All I can say is we need more Flex. Flex is a meta-hero. He's a fictional creation brought to life. That fictional creation is based on all those Charles Atlas ads that used to be in the back of comics. As a hero Flex is a true blue type of hero that orders milk in a bar. His power is "The Muscle Mystery," which is sort of magic that you can do by posing and flexing your pecs. His greatest personal best is he once turned the pentagon into a circle.