I read about what is a class ability, I think. But it may have been a feat. It provided characters that were in mental contact with each other serious buffs. Namely that one couldn't be flanked unless all were flanked, or flat-footed unless all were, or surprised unless all were.
I thought it was part of one of Dreamscarred Press' psychic classes, but now I can't find it. Can anyone give me some direction here?
The 3rd level Tactician power "Strike as One," maybe?
Yes, thank you! I think that I overlooked that power because I was reading for the defensive benefits.