Tanks need changes, not buffs, Imo, to make them more useful in PVE aspects of the game. At the current moment, a pt of 4 rogues or 3 rogues 1 mage, is considerably faster than dragging a tank along. As for Mages, personally, they do need a few changes possibly to make them more balanced in pvp, but, they are in no way as "underpowered" as people make them seem ( AT ENDGAME PVP).