Warlocks in WoW games were mages that delved too deeply into the roots of demonic power. Consumed by a lust for dark knowledge, they've tapped into chaotic magics from beyond the world. The Burning Legion now feeds them their powers, allowing them to channel destructive energies and call upon the powerful emissaries of their demon masters. Their strengths lie in the resourcefulness of their summoned minions and their ability to inflict pain and destruction with spells.

Warlocks can summon demons to their aid. A warlock can summon four types of demons binding them indefinitely until death or dismissal. These four types of demons are the Imp, Voidwalker, Succubus, and Felhunter. A warlock who puts 41 or more points into demonology may also learn to summon a Felguard as a loyal servant. All warlocks can also call an Infernal to rain down as a meteor or perform the sacrificial Ritual of Doom to spawn a Doomguard; however, these two demons are able to break free of their master's control, making them hazardous allies. A warlock player may command only one demon at a time.

Warlocks also can summon demonic steeds to speed up their travel. They also possess the ability to create the Eye of Kilrogg. Warlocks also have the ability to track and enslave demons in the wild. In addition to enslaving demons, Warlocks also have the spell called Banish which allows them to remove a demon or elemental creature from the temporal world for a short period of time.

Warlocks are able to drain the souls of their enemies to create Soul Shards, which are required reagents for many of their abilities. The summoning of Voidwalker, Succubus, Felhunter and Felguard all require a Soul Shard. Using a Soul Shard, a warlock and two other players can perform the Ritual of Summoning to summon other players to their location.

Warlocks can create several conjured items called "Stones" from Soul Shards. Warlocks also possess curses with a variety of effects.

To sum up, the warlock in World of Warcraft is a damage dealing de-buffer class, channeling the power of the darkness to slowly destroy their enemies or aid their allies. Making efficient use of the Warlock's crowd control spells. The Warlock is quite capable of conquering much of the World of Warcraft solo. Careful use of their pets (Imp, Voidwalker, Succubus, Felhunter, and Felguard) makes Warlocks one of the toughest and most feared classes in WoW. Therefore, warlock is an excellent solo class and a formidable enemy in PvP combat.