I'm running a nightblade and am looking for some good CC skills to use when I get in a bind. Is mass hysteria a decent skill to take for pve scenarios. Also does the effect carry over if I swap weapons after casting? I'm running a dw/bow build and could use a good cc for when I get mobbed while I'm shooting from a distance and everyone comes running toward me. I know the distance to use the skill is pretty short, but I'd pretty much only use it for when I get surrounded.
As an alternative, what does anyone think of agony and its morphs as well as mirage and its morphs as a dodge buff ability. Please share some thoughts.