Since not many people are familiar with Overpower (which was an old Marvel and then DC card game), I'll explain.
First, each of those stats, Energy, Fighting, Strength, and Intellect, is usually between 1-8. It determines what attack cards of those types you can use. Most characters have a couple mid/high stats and a couple mid/low stats. Batman was 2/7/4/7 for comparison. Beyonder can play any card of any strength.
Second, each character had specific 'special' cards. These were cards that represented the specific special abilities, techniques, powers, gadgets, etc, that the character could do. Some were attacks, or heals, or buffs, that sort of thing. But a character could only use the special cards for them. Cyclops could only use Cyclops special cards. Batman could only use Batman special cards. As you can see, the Beyonder can use *any* special card.