[1.2.304] Strange items...

On a 810% damage skill, no it won't. Even with a 50% stun rate, you're talking about less than a 10% dps increase, and it's more likely going to be 10%ish on most equips.

850% damage skill? What are you talking about?

The new Stun Mastery change gives it +160% critical damage at a 60% rate. That's a great improvement. 970% Dragon Strike, 390% x10 Rapid Fist, yadda yadda yadda. Having a frequent stun added into our normal training would make those criticals show up more, meaning more critical damage, meaning higher average damage, meaning faster killing.