World of Warcraft's upcoming Warlords of Draenor expansion and are trying to figure out just how to use the free level 90 character booster you've just scored, then you are exactly the type of person who should not use a free level 90 character booster. Kidding. Truth is, the boost is different from previous boosts in several not-obvious ways and can be daunting even for returning veterans, and that's what Blizzard hopes to convey in a new Boosting 101 guide compilation on the official site. The post explains basic gearing, class strategies, proving grounds gameplay, addons, and how crafter boosting works. Apply wisely!