It doesn't automatically become zero at 70 chakra, only after you use the mystery

It is impossible to stop or reflect the ability of kimimaru .. from what probe without it puts +2 is better and you confuse it ahuqnue it increases it .. kimimaru's problem is * .. it is like a super offer from the supermarket ... 20 chakra a lot of things you do first move first round. hehe..usela +2 rinnegan

Kimimaro's mystery can be dodged, there are ninja that can decrease their cooldown too, or ninja that can decrease other ninjas cooldown. Just because YOUR team can't counter kimimaro doesnt mean he should be changed

I talk about its cost and the time of the skill only 20 chakra ... because better 40 or -30% less damage or only increase 1 time to 2 characters or better even if the use of the skill is random

Can't deny the fact when you need to have a certain ninja to counter another than that ninja is just broken, in the past only ashura could beat ashura, same with kakuzu and edo hiruzen these ninjas were only countered by edo itachi or else you were screwed, kimimarro is too op for a 20k ninja and his mystrey changes the outcome of the whole battle with just 20 chakra.