Arena pissed me off more than anything pre 4.0.6 so I was on the PVE side of things with rets. After 4.0.6, their damage went up 10%. It is really nice. No other class/spec is getting a buff this big. In the raid, I am doing competitve dps against DK/Warlock. Only behind Rogue and Hunter.

Convert this damage to the PVP side, rets should be on par vs other melees. For my team though, the loss of bloodlust hurts me more than anything else. So Arena doesn't look too bright for me. For you guys who have DK + 4 rets, this damage buff is pretty significant. Rotation wise, Divine Purpose is out of control. 15% proc for a 3HP skill. I can't manage it. so I simply mash the TV key whenever I feel like. If you play manual, the rotation feels lackluster. There are dry period /holes in the rotation where you have nothing to use, but to stand there.

For the DK, one thing I notice that unholy DK is definitely doing LESS BURST post 4.0.6. They were bad in burst in 4.0.3. Now it is even worse. They are the affliction warlock in plate. Burst is just not there at all.

On the other hand, BLOOD damage went up a lot. My DK tank is doing 9k dps consistently in 5 man heroic. So running arena with a main Blood DK is definitely a good option here.