These make a nice fear for any class that doesn't have one, resto druids for one come to mind, and since it's only a 2 sec cast you don't risk mobs running too far and pulling more adds.

works great for anti-ganking action. For any leatherworker this will cost at most 5g to make if you have the leather for it. you can farm 4 primal shadow in death's door in about 20 minutes.

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