So current rotation is, keep dots up. Cast MB when you proxy Shodow Orbs buff to keep 10% buff to dots up. Mastery is very weak, and I don't see it becoming any more viable as we gear.
This change is very recent, so I don't know how many people got to try it out in beta.
If you did get to try it out, what are your thoughts?
Make 3 stack MB/MS portion of the Shadow Orbs more attractive.