seems as though several powers have a new power back mechanic...plz explain which toons have them, and how the mechanic works
All powers have them when in DPS role, but each one has a different mechanic. Which power are you talking about?
https://forums.daybreakgames.com/dcuo/index.php?threads/explanation-of-advanced-mechanics.225356/ http://dcuniverseonline.wikia.com/wiki/Power_Restoration#Advanced_Mechanics