Instances can be fun and can provide good loot to players who do them, but they are not required content for wow powerleveling. Instances will help you learn your role in a group setting and how to play well with other classes. Usually in an instance your most important role is providing crowd control through polymorph, then damage, then buffs and food/water.

 

Grinding alone is not the most efficient way to level a mage, or any class. Grinding is when you simply kill mobs in an area over and over again in order to level. As you might imagine this can become very boring very quickly. Safe and cheap wow powerleveling is on upowerleveling.com. Good mobs to grind for mages, single target or AoE, are melee mobs that have no ranged attacks, abilities that affect spell casting speed in wow powerleveling, or abilities that can prevent you from kiting them, like knock down.

 

All these roles are important however and if you neglect any of them you are not fulfilling your role as a mage in an instance. What's amazing is that if you manage to leave level 58, it will help you in working without necessarily having to visit the previous content of the old game. You will find a variety of knights all the way but none of them is as exceptional as the Death Knight. As a matter of fact, it has three levels, with the first one starting at level 55, which allows you to add on your points.