The supporter Special Stat is probably the least used special Stat of the four stats. I think it’s time Scopely puts this Stat on their endless improvement list. In the meantime, let’s suggest how they could improve it’s many outcomes!
(I’ve put in the supporter Stat outcome tree as a picture to help the brainstorming).
My suggestion is to simply make the supportive stat affect multiple characters instead of just one. This will help the Stat go from a waste of a slot to actually being useful. Simple and not at all overpowered.