The warlock can summon an Imp without a Soul Shard.

Warlocks are used as damage dealers, but can store the target´s soul to resurrect or heal himself by draining enemy's life. They first appeared on Azeroth during the First War, when Gul'dan, the first of their kind among the invading orc clans of Draenor, led the Horde across the dimensional gulf through the Dark Portal while in servitude to the Burning Legion. Warlocks are masters of the dark arts, devoted to furthering their understanding and use of shadow and Fire based magics, along with the summoning of demons from within the Twisting Nether. Warlocks are often maligned and mistrusted due to the nature of their powers. According to the WoW Census, warlocks are the least represented class. 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. 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 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.

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