Bump! Would really appreciate any insight on this ability. Trying to decide what is a good choice for my assassin to go with keen sight and pleague arrow.

I need help finding a good use for this awesome looking skill. I really want to use it but found it very situational at best. My problem is it only works certain foes and if you manage to land a counter it can be disrupted by other attackers :( anyone have any advice on when and how to use this skill to get the most out of it?

In the description it says it's effective when used with poison, is this just outlining the fact you can hit multiple targets with one arrow or are the arrows actually more likely to cause poison? The charge up time to use this ability hardly seems worth it if it's only to hit an extra target or two considering I could fire five arrows in the time it takes to fire one puncture dart true?