Fortification Question

Hi, I used the search feature without much success because of the number of posts.
Wiki talks about end game players seeking 300% fortification. It seems this is because higher CR mobs can bypass a lot of it and the goal is to ensure a small chance, or 0% chance of a crit. Does anyone have the equation? It seems like %chance of crit by mob = MobCR+100-fortification. Is that only for Mobs with sneak attack dice?

And then do some Mobs have further abilities to bypass or reduce not based on CR? Just wondering what the end boss is, and how, it's able to bypass fort requiring such a high number (300).

thoughts appreciated.
 

G.W.

Well-known member
Some champions ignore fortification completely, so it wouldn't matter if you had 100% or 400%.
Many mobs reduce Fortification by their CR, so getting more can be useful.
 

dur

aka Cybersquirt
Some champions ignore fortification completely, so it wouldn't matter if you had 100% or 400%.
Many mobs reduce Fortification by their CR, so getting more can be useful.
Red Named Bosses have many, uh, bypasses . . .
 
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