User blog comment:Jameslyle2/Kalypso, The Void's Regeant/@comment-220.255.2.94-20121019141950

Too strong at late game. The damage reduction at the third lvl of his passive can be up to 37.5%. Furthermore, 6 stacks every 2 seconds can be 3 stacks every one second. The maximum AS you can get is 2.5 (2.5 hits every second). That means even with max AS, his souls will not deplete and will even increase by 1 every 2 seconds. You may want to nerf the recharge timer so he needs to be careful of who to hit and prioritise.