The PoisonCloud doesn't work, i've tried tons of times, with Grey Poison, Yellow and Amulets and it's allways the same effect, no cloud, just sound and no cooldown (and yes,the Effects in Options Menu is ON).
I got this in my DB:
PoisonCloud 8 55 15 0 0 14 0 0 2 43 4000 45 8000 48 12000 300...