The biggest disappointment is that now this game is solely for those who can pay real money in the game and poor players who are not high amp'd will have much more to loose.
Earlier i ,despite of being low amp'd, could help my friends by healing in lab/hunts/towers. But now since there is only magic power, what i need is high magic power and for that i have to amp my weapon even more.
So, high magic = high heal, low magic = low heal !
Poor players = low magic = completely useless
Rich players = high magic = Can both tank and heal at same time.
Now we don't need 2 players to hunt b3 in lab, only a +10necro/shaman can solo and that will be the case pretty much every boss.
In the end i can see all the casters having one "perfect" set for their class which offers max defense/offense and everyone will be using the same gears. The only deciding factor will be lucky crits and dodges and obviously the amp.