Captain Cold

He has the power of using painful puns. What is that? Once he figures out how to purposefully do it, he can use puns – however terrible – to actually inflict physical pain on people. The intensity is related to how sadistic he is feeling and how bad the pun is, as well as any mental defences the other party would have in place. The exact nature of the damage depends on what kind of pun it is. A pun on cold would send a chill down your spine, etc.

Not an especially useful power overall, it can’t be harnessed to be truly harmful, but if he gets it right, he might at least make someone scream. Scream and beg for mercy, to get him to stop with the painful puns.