Wizards of the Arcanum. Warlocks are greatly feared across Corwyn as highly skilled, disciplined, and thorough evil masters of magic and mind control. Most are wizards, although a few are sorcerers and rogues as well. At higher levels, all Warlocks must go through a painful process where one of their eyes is removed and a gem set into the eye socket. These gems then channel powerful magical energy through the Warlock and greatly enhance their spellcasting effects.