I got this idea from Dota. There's one character named Windrunner that has a spell pretty much like this:
-Bursts wind to all enemies around her, increasing her movement speed by 100% while slowing their enemies for 100% reducing like old chain of icee (dk)
I think this would work perfect for elemental shamans with so much problems in getting out of melee combat. It could share shock cds as long as it wasnt overpowered. It wouldnt, warriors can hamstring chain and as of now, its not op from blizz prospective.
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