BLM already has Sleep and Break, no need for another crowd control spell. The damage is rather weak (just used below 50 as a Blizzard 2 replacement) and it's never used at 70. I propose it's turned into either an oGCD damage spell (like Contre Sixte) or made into a targeted ground AoE puddle DoT like Shadow Flare that slows or weighs down things in the circle.