This is something in the nature of a plea. Mastery is a great concept, in that it is one stat every class should be able to agree upon and like, and that its effects are unique to each class. This is a great design, and it is a, pardon the pun, masterful new stat for the new expansion.
So it saddens me greatly that Ret Pallys at 85 will be actively working to avoid any Mastery on their gear whatsoever. According to Redcape, of Elitist Jerks fame, at level 80 Mastery is worth 1/7th the DPS as an equal amount of Strength is. At 85, this gets worse, to 1/8th. This means that we would have to receive 8 points of Mastery to equal the DPS equivalent of a single point of Strength.
Such a huge disparity in stat weights is simply bad design, and I hope that you, Blizzard, see this and do something, anything, to make this stat better for Retribution.
A suggestion of my own would be to change our Mastery to place a DoT on the target that deals XX% of the damage done by your last Templars Verdict as Holy damage, over, say, 3 seconds, with each point of Mastery increasing the percentage done by XX.
This would reinforce Templars Verdict as the center point of our rotation, and would give a small boost to the value of Inquisition as well, which currently is coming across as a bit lackluster.
Thank you for reading,