So my opponent is playing gc005 Penguin, who has a trait. The trait says, "Opposing characters within 4 squares can't use Outwit."

Let's say I have one of my figures (who is more than 4 squares away from Penguin) Outwit something, then move within 4 squares of Penguin. Does the thing I Outwitted stay Outwitted, or does the opposing figure get its power back?

From the Player's Guide:

A game effect which states that another game effect can‘t be used prevents a new activation of that specified game effect, but it does not end any ongoing effects unless otherwise noted.

So, the thing stays outwitted.

Thank you.