The term "OP classes" in World of Warcraft refers to overpowered classes. These classes are typically considered to be more powerful than the other classes in terms of overall effectiveness in both PvE and PvP combat. This can be due to certain abilities being over powered, an increase in damage output, or an increase in survivability. In PvE content, OP classes are often the best classes to play as they can usually carry their group, the content is relatively easy, and there are usually more rewards per hour of playtime. In PvP however, OP classes often over shadow others and can easily make up for gaps in skill or gear. The most common OP classes in World of Warcraft are Hunters, Warrior, Rogue, Death Knights and Demon Hunters. Each of these classes have a particular set of abilities and power that make them stand out from the others, as well as gear and equipment that make them nearly unstoppable. These OP classes can easily be countered by specific strategies, such as using crowd-control or other types of preventative measures in order to hamper their powers, or even outright kill them. It is important to remember that all classes can have a place in PvP and PvE if used correctly, and even the OP classes can be beaten with the right tactics.