The Immortal Emperor's Return from Another World

After failing his tribulation, a quasi-Immortal Emperor finds himself in a plane of magic and warriors, where he uses immortal arts to crush magic and martial skills with overwhelming force. Magic? I have 108 great Dao arts. I can summon wind and rain, turn the stars, and move mountains. Martial skills? I have three thousand sword techniques. One slash opens a heavenly river, two sever the mortal world, and three forget life and death. Pills? You have nine grades of pills; so do I. I have three tiers of spirit pills and nine turns of immortal pills. The wisdom and resourcefulness of humanity, the loyalty and ruggedness of the half-orcs. The alliance between humans and half-orcs, and the clash of mages, warriors, and cultivators...