I tried different stat builds and while 500% crit dmg does ok, its certainly behind in damage compared to my warlock and Berserker, and the aftermath set killed faster than using 500% crit (300% crit with aftermath on my embermage).
Could just be a case of no T1 focus weapon available yet tho, but so-far, it seems to me that the Embermage is not a glasscannon, its more like a peashooter that requires utmost care for both gear and build to have a comfortable character.
Warlock, Berseker and Engineer has better survivability then the paladin in all ways, paladin only has a full-heal every 20 seconds, not exactly gamechanging, i include Engineer simply because not every ability goes through shield abilities in Darkness Falls, some does, but not enough to kill you right off.
Also, Fire Pillars are really annoying, they do not last long enough to justify 15 points imo, tho it is one of the abilities that deals good enough damage to actually use.
Also, what is "great damage" ? i do not consider 500k per 1 second great damage, that would be "decent damage".
EDIT: i certainly do not have much knowledge about Embermage, so any tip to improve a caster oriented gear build would be appreciated, just been tinkering with the brimstone set to min/max my Embermage.(and it falls short by a lot, at least by my standards)