Once upon a time, cavemen roamed the earth, great volcanic eruptions disrupted the cavemen's gaming time, and I wrote an article called "Know Your Lore: Good Dragons." Now it's time to cover the "bad dragons" - the Blue, Black, Chromatic and Infinite Dragonflights. And yes, I know you're all going to complain about the blue dragonflight being "bad", but unless you really want to run every dungeon at level 80 without a mage, you're gonna have to fight them.
Characteristics: The blue dragons may be the most intelligent of all the dragonflights. They're the masters of magic, the weavers of the arcane, and the guardians of icy areas. Of course they're going to be villains at some point! "Arcane magic corrupts" is one of the primary lessons of WoW, along with "elves are jerks" and "never get involved in a land war in Kalimdor."