I hope Blizzard never listen to those who are complaining about the Mage Tower challenge. It's a real challenge, and it's not meant to be an easy path. If you can't deal with the encounters, improve your skill, because that's basically the problem: your LACK of skill. Bosses are NOT overtuned, they are just challenging; get over it. All those who are complaining wanna destroy an interesting feature of the game just because they want it straight away; they wanna get there and kill the boss without any effort (perhaps because they think they should get it just because they're paying). As I said before, you should IMPROVE your skill with your character and try it over and over until you get it. Blizzard, please, don't listen to those who are whining, they are the reason why this game has become so easy in so many ways. Keep the difficulty as it is right now.