Blood: The Blood expertise tree is focused on significant single goal injury and many lifedrain talents. It is very good for leveling, grinding, and also dps’ing in groups. So in mage case it seems a "frost armor" isn't a possibility neither, and neither is "molten armor". Superior to grasp. https://hectornubio.ourcodeblog.com/14294508/5-easy-facts-about-death-knight-intro-quests-described