Noone takes this skill because of one thing and one thing only: it's too clumsy to aim (read as: impossible). AND if you couple this with ANY lag it's basically a guranteed miss.

Also, due to the nature of dungeon combat (try to line your opponents up neatly for the skill to take full effect) you're wasting time and just using basic attack skills will garner more DPS.

In the end, it essentially is a single target skill if that.

My advice is to just make it a true 360 "around the player" AoE.