-Don't forget that SK paralysis and fear are 25m so if you slow sk down the violent slice duration will be end and you can cast sleep. Even if it can spam, the duration will become less. All you do as a crane vs sk is to make sure that you aren't 25m from it, wear anti bleed and energy defense set.
-About karma i agree with you, the skill hesitation needs to do something about it.
Like decreasing its duration time, this will make karma has to use rp charge first to cast it with duration rp. Making a delay using hesitation, giving karma an opening to counter attack.
Paralysis is 20m and fear is 15.