Patch 5.1, titled Landfall, hasn't yet hit Europe, but it will do so in just a few hours, which means that a couple of changes apply to classes I play actively; in this case shaman and particularly death knight. Why particularly death knight, although my main is a shaman, I'll tell you now.
Death strike is getting its bonus healing removed in PvP with 5.1. As this only applies to player verses player combat, blood death knights will still heal themselves as they used to in PvE, and retain the basic healing from death strike in all situations, as well as the blood shield absorption, while the bonus healing is lost in PvP. Below is the description of death strike at level 90, and the bolding indicates which part (according to my understanding) no longer applies to it in PvP.
Focuses dark power into a strike that deals 280% weapon damage plus 748 to an enemy and heals you for 20% of the damage you have sustained during the preceding 5 sec (minimum of at least 7% of your maximum health). This attack cannot be parried.I generally PvE way more than PvP, although there have been seasons that I've been quite active in PvP - but the truth is that it's still fairly rare activity for me. During Mists of Pandaria I've completed a total of two battlegrounds. Not impressive. I did, however, have plans for it and particularly in the case of Vlad. I was going to distinguish myself in the PvP area, as a blood death knight, because, well... If you compare my skill when it comes to, say, raiding and when it comes to PvP, there's a big difference, so I need it to be easymode! EZmode, I tell you. Also because PvP is a nervewracking experience for me, it makes me nerdrage.
I mentioned shaman, too. There's more bad news for me when it comes to my PvP future. Totems will now be considered spells, which means they cannot be cast while silenced. This may not sound like much to a non-shaman, but a ton of shaman abilities come from totems. With totems we're able to, for example, remove fear and absorb/reflect a harmful spell. Although the talent and ability changes in the pre-Pandaria patch made totems less important in a way, they're still a great part of shaman gameplay.
While I am nearly traumatised by PvP as elemental shaman, I haven't completely abandoned the thought of it, as I have great and fun memories of it, too, not only losing my nerves and taking it out on the wrong people. Like that one time in Arathi basin, when I annoyed a priest healer by throwing him down the cliff at Lumber Mill. He came back with revenge in his mind, trying to mind control me off the cliff, but I prevented that three times, first by interrupting, then with a totem, and once more by interrupting - as back then wind shear had a 5 second cooldown. Until I get over the upcoming nerfs, it seems that my only hope of the holy trinity for PvP will be my somewhat holy paladin.
I think this was about all I wanted to rant about this evening, thank you and sorry! Now a long, deep breath and...