Not sure if this is a bug or a hack, but ive noticed this a few times where i am fighting a player, have them dotted up, stun them watch there health go from 100% to 20% in a matter of seconds, and no matter what i do they will not go below 20%. im a veteran player so im aware of all the tricks/spells/abilities other classes have, but this just doesn't seem right because the their health bar doesn't move up or down from 20%, it just stays fixated like it is predetermined to only go that low.