Talk:Karthus/@comment-4949668-20120326165143

With the new hexdrinker upgrade, his ult will only do the bonus damage from ap, of course if he has a lot of ap, it could be slightly less useful, but it will halp a lot. Say you have 300 health leaving a teamfight (you are outnumbered and outbursted), Karthus has ~300 ap and is level 16. base damage 550 + 180 = 730  730 - 500 = 230. without resistances, you still have ~70 health. You live.