There are 2 champion passives that are working way differently and am not sure if this intended or not. 1st we have Precise strikes in the Ritual, the one the increases your critical damage. When you put points into that passive ull notice that your critical damage barely changes after several 3% or 5% are added into that.
Towards the end when you reach 85 of it, the rest 15 points wont even give u a raise of 1 damage,so you can basically leave at that and move on into something else. Even if you start calculating your damage factor which I assume starts at 1.5 by the time you have that 25% crit damage your damage factor will be somewhere around 1.6XX assuming you don't have any other passives giving you crit damage percentage. You can also test this by using aggressive horn and reducing your stamina where you don't have the 10% stamina boost and ull notice the big gap between 30% crit damage from the skill and the 25% crit damage from the Ritual.
Now we have another passive in the Apprentice Elfborn which gives spell crit damage,so I heard from couple of people that this one actually boosts your tool tip damage with spell crit damage, so I went and maxed it out and oh wow, every single point into that passive made a difference in both damage and crit damage so its like you are getting more damage and more crit damage from 1 passive. So at this time Iam not sure if precise strikes was supposed to work this way, where you get (more damage and crit damage) instead of spending 15 points gettin 3% crit damage and you still do the same amount of damage and your tool tip stays the same from 1-100 points.
I am not sure if I heard this right, long ago maybe 10 ESO live episodes ago they said that you can get your crit strike damage factor to 2.0 using the champion passives and some other passives, if this is true then a lot of players are missing critical strikes damage!! Hope this helps people