Hmm 2hander for shaman. Don't you lose Lava Lash (http://www.wowhead.com/?spell=60103) from using a 2h ? Minus one instant spell for the shaman is huge. I don't think the windfury proc on the 2h can make up for that.
I have a DK + 4 Rets too. Even with Death Grip, kiting is still a problem for me if I am not careful on when to use it. If I death grip a frost mage first, following a hammer of justice stun. He blinks. Then he is gone. Range nova. Then he will start casting. I dispel and freedom myself. But he has gained so much distance on me where it takes time for me to catch up.
With enhancement shaman leading, you will have the same problem. But you have Frost shock root (only if he is 15 yards away). And it is on 6 second CD vs Death Grip 35 seconds. Not to mention that you can purge him too when trying to catch up to him.
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