Not that I want to completely destroy my own chances of getting to level 200, but I have to say that healshield is simply too powerful in its current form.
There is no way that at level 194 I should be able to take on 10 lv 203 assassins at the same time and not get hurt.
If I get beaten to a bloody pulp, I can fight something weaker than myself and be fully healed in 2-3 rounds. The same amount of hit points takes 15-20 casts of heal critical.
Healshield negates the advantages of having a priest in your group, who needs a healer when all you need is a mob that can withstand 2 rounds with you but can't hurt you.
If healshield is cut in half it would still be very valuable to those who use it, but would no longer make a person completely invincible.
Just my $0.02
Thaxn