Talk:Kassadin/@comment-9705522-20140318125527/@comment-3974211-20140318151630

They basically turned him into an energy champion that still uses mana. The stacks on his ultimate last 12 seconds - so the moment the cost gets too high to use it the skill goes on a 12 second cooldown. This compensates the face that it's actual cooldown is now 3 seconds. They want him to be mobile in fights while having ridiculous getaway and roaming capabilities - thus, high cost and high mana regeneration (with his Nether Blade). In my opinion, Nether Blade should also cut the stack duration on his ultimate by 3/4 seconds.