They can be replaced, however you'll need to reach the limit of expertise as the two offset legs and the 5 legs don't have 22 years of expertise. A majority of the pallys accept that they'll be carried around for a while.
If you've got all three and are human you take the pants off for a short time, however, it's recommended that you keep them as a transition piece while you are gearing in the p3. I'm not sure what other species do in the first place, perhaps they do not take them off not really certain.
My resto shaman .... was watching the screen turn green, with a million tiny heals moving ..... It was my thing.
Edit Trauma and the Glowing Twilight Scale .... since the healing from chain heal was considered to be a direct heal even on subsequent hops this would cause both the above things to go off as fast as they can, and I could literally be healing 20 of the 25 players in the raid at any time.
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