How thorns (dual blader) works

This reminds me... Is it possible that NLs get a boost in critical damage but not on chance? Like, rising from 200 to 250, because 250 is higher, but remaining with the 50% because it's higher. Considering it as a 50% damage increase only.

I'm expecting Thorns to take up the innate crit slot (if it's not already filled), and SE to stack with it like how it stacks with innate crit.

I'm asuming that one for now, too.