In response to the whole "Omg bleeds break this, this skill sucks it's SO broken" thing:

That's cause you're supposed to blind other mobs or other players that you want out of the way for a sec or two... Not the one you're killin.

1. try this macro:
#show Blind
cast @mouseover Blind

2. assign it to a button

Then you don't even have to untarget what you're killing, just put your mouse over that pesky add or other player in pvp and hit the icon # and poof, they can't see.