Does Braniac have double outwit if he carries around a low point Superman Enemy?

And by Braniac, I mean Brainiac.

No.

"Superman Enemy: If two friendly members of the Superman Enemy team are adjacent, the character with the highest point value gains Outwit. If that character already possesses Outwit, this team ability does not work. This team ability ceases to function at the end of an action in which the two Superman Enemy team members are no longer adjacent."

No the TA states that it works unless the higher point fig has outwit.

Is he still worth his points? Did they give him a discount?

He may have gotten a small discount on his outwit clicks for the Superman Enemy team. It was thought that the reason Ultimate Hulk was so cheep what that he wasn't paying for the Ultimates team since he doesn't get any benifits from the ability.

Brainiac could still give outwit to a higher costed SE fig though.