what i do when i solo him is
drag the 1st 2 adviosrs to the start of the instance ( more like i start then run and wait for like 2 or 3 mins)
i run back to kaels room and kill the 3rd one
run to void room and kill the 4th one, then i run back to the mage (3rd one) kill all the weapons on her. when they all revie kill the mage asap then kill the eng (4th one) then kill the other 2. if u have the dps you should be able to kill the mage b4 the eng gets to you and kill the eng b4 the other 2 get to you, then in p4 make sure you have some sort of interput otherwise you die to pryoblast kill the phonix and the egg when they pop and nuke kael down, at 50% just kick the crap outa him and dont get that debuff on you.
also just noticed this was on a preist forum, so id suggest making sure you save bubble and anyother cds for when he cast pryoblast.