Do different sources of Fumble stack? And if they do, what is the formula behind it?
For instance take Circle of Slaughter and Searing Light:
10/10 Searing Light: 33% chance for target to fumble
12/12 Circle of Slaughter: 35% chance for target to fumble
I doubt it.
Thinking of it now I believe “stack” is the wrong phrasing here since once the target is under the influence of fumble, it cannot gain additional fumble.
The effect of these skills should work independent of each other then.
Throw a Flashbang with Searing Light at target: It either gets fumble’d or not. If yes, then it’s all good.
If not, THEN one can use Ring of Steel with Circle of Slaughter and again have the chance to fumble the target.
only highest value will take effect. Also the fumble and impaired aim on searing have 100% to apply on hit, only the confusion part on flashbang may or may not proc