If you're anything like me, you're headed to level 90 as quickly as possible for raiding. But even if you aren't raiding, you can still start the task of picking up what will eventually be your legendary from Wrathion. However, you will need to be level 90 to start the quest, shown in the YouTube video above. Wrathion has plans for Pandaria, and although those plans remain a mystery, he supposedly has the best interests of Azeroth in mind.
But before you can start doing Wrathion any favors, you're going to have to earn his favor. After you share a drink with the Black Prince, he'll ask you to prove your worth. This means you've got a rep grind to work on -- you'll have to be honored reputation with Wrathion to advance to the next step of the chain. So how do you go about gaining the favor of a black dragon?