Infraction: 6. Do not post unless you have something new and worthwhile to say.
Message to User:
Please use a PM to thank someone. That way other people will be able to find the information they're looking for more easily.
There's a discussion about this question in the mechanics thread. (link) It seems that at level 85, with the t13 set bonus, Unholy and 2H Frost want RC, for more mastery.
Thank you. I also think so.