Quote (ghc @ Nov 5 2014 06:56pm)
seems to give you a big buff as soon as you are 1 level above at least... didn't get into a dungeon til i was already 81
only the 3 newest ones seemed to give any exp... ran all 3 with a lvl 83 rogue and he got almost a full level he said, which is about the same exp I got at level 81.
tried other heroics but the exp was really bad.