World of Warcraft: Legion

Warlocks are the bane of all life. Empowered by demonic blood, they can inflict great torment upon their foes. To replenish the dreadful energy their spells expend, warlocks drain vitality from their victims. The warlock can also summon and control terrifying demonic entities. Still, warlocks are feared above all else for their singular wickedness and cruelty. Warlocks cast Fire or Shadow magic to damage, drain, or curse their enemy. They summon demons as servants.