Sorry I forgot to clarify my classes etc. I am only level 60 now, I box 1 pally, 3x shamans, 1 priest. Would I be good on the tanking/healing aspect?

Also what are emblems? How many would I need to get 1 piece of armor? Also what tier is conquest armor? Lol sorry for all the questions, I am learning already. haha

Thanks for the guide, I will study it up.