Vengeance questions

A friend is questioning whether he should get it (late since he knows it's useless) and wants to know how it works. I don't have a bowmaster and most people think vengeance is crap so i figured SP could help.

1) Is the 500% damage reflective? Is the damage dealt based on the damage you receive or is it based on your damage range?
2) Does it activate with a miss or only when taking damage? It would sure make "Dodge" more useful.
3) Does it have a hidden cooldown or is it like power guard? The skill doesn't mention anything about a cooldown but for it to have such large range and damage it seems a bit broken when it does activate.

Vengeance sucks dude, even 1 point in it is by far the most retarded thing you can do to your character. I can't describe how terrible it is. It's worse than Ninja Ambush. F`uck.

Vengeance sucks dude, even 1 point in it is by far the most retarded thing you can do to your character. I can't describe how terrible it is. It's worse than Ninja Ambush. F`uck.

I second this.

I -believe- it's dmg is based on your range. It activates when taking damage and misses. From what I've seen it doesn't have any sort of cooldown, but it's hard to tell on a 200 BM with all my physical avoid.

It's a passive skill and has no cooldown, it activates very randomly (meaning you can't control when it activates nor on what monster it activates on). I believe it's based on damage range as well, based on what I messed around with in Tespia.

It's terribad.