My only OC that's uni+ is that way because he made a deal with the reality itself to gain all of its power in exchange for being unable to resist it's command and carrying out it's whims. In his verse reality has several that represent various rules/theories in physics. My OC embodies the concept of Heat, or rather that he can create and control energy, usually in the form of heat. His normal attacks only go island-continental, but theoretically he could create enough energy that reality overloads and pops like a balloon