The description for blindness says simply that the "next outgoing attack" misses. What, exactly, for the purposes of this condition, constitutes an attack?
For instance, if a warrior is blinded and then uses his hundred blades skill (which consists of up to 8 "strikes"), does he miss only on the first strike or do all the hundred blade strikes miss, i.e. is the attack just the first strike or all 8?
Also, what happens with AoE attacks? Let's say a blinded ele starts a meteor shower, does each little meteorite miss? Does the first foe to walk into a blinded necro's mark of blood get to walk through unscathed and any subsequent foes are less lucky? Or are AoE skills exempt from being affected by blindness?
To get a little more complicated, take the case of a thief using his black powder skill while blinded. Obviously the shot won't do any damage (thus ridding the thief of blindness), but does the combo field (smoke) still get created? If so, are nearby foes blinded themselves? Is the target blinded (even if the target isn't "nearby", the black powder skill combos with itself to cause blindness) despite the shot "missing"?
I know this is getting into the nitty gritty details of the condition but was hoping someone would have some more insight into its intricacies than I've been able to gain from searching and reading the wiki.