This may also apply to the necro version of the spell, but I have not tested it. The right side of the conjuror prestige tree gives you planar wrack which will increment up to 5 times. Once a mob is "infected" with planar wrack the conjuror can then cast Planar Burst to do damage to the mob. Firstly, you can only cast Planar Burst while you are directly targeting the mob. If you are targeting a tank who is targeting the mob it will NOT work. Secondly, didn't you guys just get away from this type of annoying mechanic when you changed the warlock dark aggrevation spell to put a buff on the warlock instead of a debuff on the mob? This is going to be annoying when fighting multiple mobs and figuring out which one has been infected so the conjuror can cast the nuke.