Phoenix Concord - Once per turn when a power or ability of a character using this team ability or an adjacent friendly character would be countered, roll a d6; on a result of 5-6 the power or ability is not countered.

I want to be totally clear on how this works before I use it, specifically in multiples.

If I have several characters with this team ability adjacent to each-other and one of them is targeted with Outwit, what happens?

My assumption is that I have to roll once for each instance of the team ability on or adjacent to that character, and if any of those rolls come up a 5-6 then the power or ability is not countered. Is that right? I'm assuming the "once per turn" restriction is per instance of the team ability, not once per turn for the team ability no matter how many characters have it.

Yep. It's once per user rather than just once. So you roll until you succeed or run out of characters that meet the conditions.

Does that mean that if one roll is a success I don't have to roll the others and can save them for a later use of Outwit?

Thats correct.

Oh wow, okay. That's not what I would have guessed. Thanks.