Good amount of damage boost. I suggest changing Water Spout, knockbcack proc is pretty bad, and the damage of it is Minor, so boosting for damage is not worth it, it's better to for the defense debuffs. And take a slot from Prf. Shifter and move it somewhere else, that acc/rech is useless in Stamina.
Combat Jumping and Invisibility are over slotted, I think at most the Gift's should do for the recovery, but take out that defense IO. Your vertical speed is going to be more important than your jumping, I suggest taking one out of SJ and putting it in SS. Chilling Embrace needs more of the slow Pacing IOs.
You're going to want a lot more recharge on HIbernate and Phase SHift.