Wiseman

ワイズマン, デス・ファントム

Death Phantom, who refers to himself as Wiseman, is an immortal manifestation of Chaos from the future. In the English dub of the anime, he is known as Doom Phantom.
In the manga, Death Phantom was originally a human living during the era of the future kingdom of Crystal Tokyo. He possessed dark powers that he used to terrorize the citizens of Crystal Tokyo. These abilities included his death hands, which could reach insurmountable distances to strike people, and his evil vision, which allowed him to control the minds of others simply by looking at them. Neo-Queen Serenity banished him to the barren tenth planet, Nemesis. Over an unspecified period, Death Phantom managed to merge his spirit with the planet, becoming one with Nemesis. He concealed his decayed and crumbling human body and reached out psychically to Earth to seek out discontent. He convinced certain inhabitants of Earth that the 30th-century utopia of Crystal Tokyo was an abomination against nature, since all its citizens were granted immortality through the power of the Silver Crystal. Thus, the Black Moon Clan was formed.
Calling himself the Wiseman, Death Phantom led them on a near-fatal attack on Crystal Tokyo, and then into the past of Sailor Moon's time to obtain the Silver Crystal and exact his revenge. Death Phantom cares little for his pawns; he manipulates them and sends the young traitors to their deaths, and even kills Rubeus himself. When faced with a new conduit for power in the form of Chibiusa, he fills her with dark energy, and she becomes his Black Lady. When Demand finally comes to his senses and blasts the Wiseman with all his strength, the decayed body shatters; but Black Lady only laughs, before revealing that Wiseman is Nemesis. When all his followers are gone and Black Lady reverts to Sailor Chibi Moon, he creates a dark energy swirl to kill the Sailor Senshi. Sailor Moon and Chibi Moon attack the planet with a Double Moon Princess Halation, and he is destroyed.
In the anime, Death Phantom first approached Prince Demand when he was significantly younger. The Black Moon Clan were the descendants of traitors who had been exiled to Nemesis centuries earlier by Neo-Queen Serenity and King Endymion of Crystal Tokyo; posing as Wiseman, the Death Phantom manipulated them into gathering power for himself. He promised them that he could give them the power and ability to go to Earth and appeal directly to Neo-Queen Serenity to gain amnesty for the citizens of Nemesis, who had committed no crimes themselves. However, Wiseman's influence slowly warped the minds of his pawns until they carried out his plan for revenge and the ultimate destruction of the planet Earth. The Wiseman personally counsels Rubeus during his mission for a long time, but remains unconcerned about his death. He condescendingly humiliates Esmeraude when she comes to him asking to be the queen of Nemesis, thereby bringing about her transformation into a hideous dragon and, ultimately, her death. He manipulates Chibiusa's childhood memories to turn her into Black Lady. Wiseman then kills Saphir when Saphir realizes that he and his brother have been lied to. In the end, Death Phantom is destroyed, but Nemesis and its inhabitants are not.