The Class : Druid

The Druid is a shapeshifting hybrid class, and is also one of the most versatile classes in the game. As with other hybrids, Druids need to specialize to be most effective in any role. Due to their need to shapeshift to fulfill roles, they can only perform one role at a time; they must switch between the different shapes to adapt to changing situations.

The Class : Shaman

The shaman is a hybrid class and depending on how players choose to customize their character's talents, they can specialize in offensive spellcasting, melee damage dealing, or healing. As such, the class is considered one of the most adaptable and versatile in the game. Shamans can also provide support to a group in the form of stationary totems, of which when placed on the ground by the shaman, either provides various benefits to party members, or deal damage to enemies, of which the range is determined by the totem placed.

The Class : Mage

The mage is a DPS caster that specializes in burst damage and area of effect spells. Their primary role in a group is damage dealing and crowd control through the use of Polymorph, temporarily changing humanoids and beasts into harmless critters. At end-game levels, mages' damage is supplemented with spells like Counterspell, Remove Curse, and Spellsteal. Mages' utility spells also include conjuring food and drink and the ability to teleport to major cities and open portals for party members. In PvP, Mage deals ranged damage while using snare effects and Polymorph to control enemy players. As damage casters, primary stats are intellect, spell power, spell hit rating, spell haste and spell crit. Mages do not benefit any direct DPS increase from spirit and this stat should not be focused on, but can however provide extra mana regen which is somewhat handy for mana management.

The Class : Rogue

Rogues are World of Warcraft's premiere melee damage dealer and especially effective in PvP. They have access to a wide range of special abilities, which depend on their constantly refilling pool of energy. Unlike other classes, such as the hunter who has the ability to deal physical damage from a distance, rogues must be in close.

The primary rogue class advantage is their ability to stealth, preventing other players from seeing them unless the rogue is very close and in a 180 degree arc in front of them or much lower level.

The primary rogue attribute is agility. For PvP rogues, stamina is needed for staying alive. For a rogue, agility is always preferable to strength or attack power. Agility gives both attack power and crit chance to a rogue, while strength only gives attack power. A rogue uses no mana, so intellect and spirit are completely useless.

The Class : Warlock

Warlocks are former arcanists, or in the case of the orcs, former shamans, who, in pursuit of ever-greater sources of power, have cast off their studies of the arcane or nature magics to delve deeper into the darker, fel-based magic of shadow.

Warlocks are renowned for their damage over time (DoT) spells and sinister Shadow magic, as well for summoning demonic minions and their ability to wreak havoc with destructive Fire spells. Warlocks can specialize in any of these areas: Affliction warlocks are the masters of damage over time, draining their targets' health with an array of powerful debuffs; Demonology warlocks summon improved Demons to do their bidding, drawing power from their minions and even transforming into Demons themselves; while Destruction warlocks call down a rain of fire upon their enemies, specializing in potent burst damage and Fire spells. According to the WoW Census, warlocks are the least represented class.

Warlocks are often maligned and mistrusted due to the nature of their powers.

The Class : Priest

The priest is the master of healing and preservation, restoring his wounded allies, shielding them in battle and even resurrecting his fallen comrades from death. While he has a variety of protective and enhancement spells to bolster his allies, the priest can also wreak terrible vengeance on his enemies, using the grand powers of the Holy Light to smite and purge them or the devastating powers of the shadow to decimate their minds. The priest is a diverse and powerful class, highly desirable in any group and capable of fulfilling multiple roles.

The priest is perhaps the best healing class in the game with a surprisingly strong damage potential as well (should the player choose to enhance this aspect of the class). Their ability to heal and buff allies, avoid aggro, dispel buffs on enemies, dispel debuffs on their allies, and resurrect fallen comrades makes them an important member of any group, whether it's PvP or PvE. Due to this, priests are one of the most highly sought after classes for any group.

The Class : Paladin

The paladin is a hybrid class with the ability to play a variety of different roles — including healing (holy), tanking (protection), and DPS (retribution). They have auras, blessings and seals that provide useful buffs for other players while withstanding heavy physical damage with plate armor and strong defensive abilities. Paladins are also considered to be holy knights or blood knights.

NOTE: It is worth mentioning that as Paladins are mostly effective against the undead and demons, the Holy tree also has good DPS talents, such as Consecration, Exorcism and Holy Shock.