Well probably other classes gonna shout thats not fair, but anyways here we ago:
How about giving mages a one shot protection? Basically now if mage get combo or even single aim shot from rogue without shield, he's dead. It really irritates me, because sometimes you cant even tap skill when BOOM you are dead. IMO thats unfair, that even maxed mage can be one shoted from legendary rogues.
It would work like this:
If a player A get insta shot from player B, player A will get 1s invulnerable with 5% of HP, basically it would let mages to charge shield and try to kill enemy.
What do you think guys? Thats my idea of buffing mages, so dont blame it very much