Foggy's more of a lover than a fighter (at least, outside the courtroom). So when he crosses the line from "lawyer to vigilantes" to "actually a vigilante himself" he's more of an information broker, like Oracle in the DU universe.

Foggy seems to know half of Manhattan and can get a favor of out of most them. Foggy knows exactly who to call and what to ask in order to find out nearly anything. Instead of physical force, Foggy knows just how to bribe, manipulate or persuade people into doing something for him--and has his own ethical quandries about how far is too far to go with that.

Like, if you get up in his grill he'll still whack you with a baseball bat, but most of the time he's the man behind the curtain, feeding information to the Defenders instead of fighting alongside them. Bonus if they think that's all he is--part of their support team, like Claire and Melvin--until somebody (Maaaaaaatt) finds out that he's been more actively fucking up bad guys, just with information instead of fists.

(Foggy does not have to be a wheelchair user like DC's Oracle, nor does he have to use that code name. Just the concept of a superhero whose "power" is knowing how to know things.)