One of the hardest things to do in World of Warcraft is complete heroic instances and raids. Available only after you reach the level cap, heroics and raids allow you to show off your skills with your guild. They require you to have high-level gear, usually rare or epic, a team of players who know how to play their roles and classes, and a whole lot of time to practice each and every possible strategy. So what do you need before you go on a heroic run? Let's take a closer look.