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'''Vector''' is a character in the ''[[Yu-Gi-Oh! ZEXAL]]'' anime. An [[Seven Barian Emperors|Emperor]] from the [[Barian World]] <ref name="ep99"/>, he manipulated [[Dr. Faker]] and [[Vetrix]] to fulfill his own agenda of destroying the [[Astral World]]. After his first defeat at the hands of [[Yuma Tsukumo]], [[Reginald Kastle]] and [[Kite Tenjo]], he orchestrated a new scheme by taking on a human form on Earth and calling himself '''Ray Shadows''' ('''Rei Shingetsu''' in the Japanese version), as part of a gambit to orchestrate Yuma and Astral's downfall. When that failed, Vector released the god of the Barian World, [[Don Thousand]], and became his host. Though they collaborated efficiently, Thousand eventually betrayed Vector and absorbed him to increase his Don Thousand's power. A reformed Vector was revived by Astral after Yuma defeated him in their ceremonial Duel.

His actions establish him as one of the central antagonists of the series, having been the prime instigator of most of the events in the series through his manipulations of [[Dr. Faker]] and [[Vetrix]] along with cooperating with Astral's nemesisarchnemesis, Don Thousand, and his treachery against his [[Seven Barian Emperors|former colleagues]].