lol i think almost all classes got nerfed. Blizzard can better start with very bad skills/talents/mechanics and then upgrade them instead of the other way around. This is disappointing for everyone.
Shamans had Spectral Transformation that is gonna be removed, Thunderstorm got nerfed twice and also the restoration tree got nerfed while there aren't even new ranks available and windfury is not working.
There are ofcourse good reasons why this is all changing, but it's still disappointing when you think you get a nice skill or talent and it gets removed or changed so much.