Every time there's a new expansion, we get some new toys to play with. We tend to focus on these shiny new abilities or revamped mechanic -- and rightly so, as they are often pretty spiffy. But I fear we sometimes forget the casualties. For when Blizzard giveth, it also tends to taketh away. Spells are replaced, redundant talents vanish, and mechanics change, and as a mage, I always feel somehow diminished when I see a blank page in my spellbook -- even if it's a page that used to be occupied by something as useless as Arcane Fortitude or Amplify Magic, those ancient relics of fail.
Mists of Pandaria will be no exception. We're gaining some awesomeness but losing a few things too. And some of those things, I'm really, truly going to miss.