The Uthuk were once simple nomadic people known as the Loth K'har living in the Ru Darklands. But the Shaman Llovar Rutonu Lokander was corrupted by the Ynfernael, the realms of demons. Llovar had his tribe drink demon blood, and soon they became the corrupted warriors we know today.

During the First Darkness, the Uthuk were all but wiped off the face of Terrinoth during what was known as the "scourging of the wastes", which occurred after Timorran defeated the Uthuk. He wished to wipe them out for good. But some survived, and now they have returned, hungry for vengeance. The Uthuk hunt the wild demons of their lands, and drink their blood in rituals to renew their dark pact.

Berserkers and Blood Harvesters make up the infantry for Uthuk. They have many bone spurs, and super human strength. Viper Legions use poison arrows to wound foes. Blood Sisters and Warlock Chieftains are the main magic wielders, and they use dark magics. Flesh Rippers are wild demons tamed by the Uthuk to fight as cavalry. The Obscenes are Uthuk possessed by demons of gluttony, and they go into battle frenzies and feast upon the blood of their victims.

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