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Living Abyss Manipulation: Knull possesses the ability to create, control, and manipulate a fount of eldritch darkness—a manifestation of the primordial void that existed before the universe itself—that he calls the "living abyss".[12] Knull has spent billions of years experimenting with and honing his powers to create not only the parasitic symbiotes, but similar entities such as Mister E and the Exolon. His greatest creations have been All-Black, the Void Knight -- a powerful proto-symbiote created to enslave the Silver Surfer, and the symbiote dragons.[19] During his invasion of Earth, Knull was able to fuse hordes of Symbiote Dragons to engulf the entire Earth in a dome of living abyss, blocking out all light.[19]
Symbiote Creation: Knull first discovered his ability to create life from darkness itself when he manifested All-Black from his shadow in order to kill a Celestial. Experimenting with and honing this aspect of his powers over the eons, he formed a suit of symbiote-armor, constructed an artificial planet, and amassed a horde of wyvern-like monsters from the living abyss.[2][19] While he initially only infected gods and other cosmic beings with the living abyss;[58] when stranded on a desolate world he discovered he could also infect mortal creatures with the living abyss, creating an army of parasites to conquer the universe by corrupting life instead of simply exterminating it.[12][19] Knull's early experiments to hone this aspect of his powers resulted in what became known as the Exolon, imperfect symbiotes he discarded as failures.[25] He was also capable of creating symbiotes using his blood, though the only known symbiote created in this manner is Big Mother.[28]
Symbiote Domination: As the divine progenitor of the symbiotes and the nexus of their hive-mind, Knull is able to mentally influence and dominate symbiotes even while sealed away;[12] driving them insane with bloodlust and hunger.[36] He is also capable of remote-piloting them, enabling him to see through their eyes and directly control them; and can manipulate their biomasses even when not in direct contact with them, as demonstrated when he used an ancient dragon-like symbiote to attack Earth and manifest an avatar of his true form.[1] symbiotes infected by Knull's will usually have red spirals in place of their eyespots, and are more powerful than symbiotes disconnected from his dark hive-mind; sometimes even gaining new powers and abilities as a result of the connection.[6][59][60] Knull is also capable of forcibly removing symbiotes from their hosts either by psychically blasting them off or by ripping them off with his bare hands.[12][25] Being one of the primevals of darkness, he is also capable of dominating other dark entities, such as the Void.[19] Even non-symbiote dark entities such as the Void,[19] Cloak,[61] and Moondragon,[62] are vulnerable to Knull's psychic corruption and domination; as was Ghost-Spider's artificial symbiote.[47]
Dark Magic: Mikaboshi has high ability to wield some form of potent Japanese dark magic, a brand of sorcery that seems especially effective against the Olympian deities. He can use this mystical energy for a variety of effects, among which are his ability to alter his form and shape; he also often takes on a female form to appear harmless.
Metamorphosis: Lucifer is able to transform into various avatars of himself and change his appearance at will.[10]
Information Analysis/Psychometry (The Emperor's psychic powers allow him to glean information out of practically anything he desires, whether it be through psychic mind reading or analyzing an object),
Precognition/Alternate Future Display (The Emperor can see countless possible futures at all times, though his ability to act on them is limited due to pinpointing the exact course of events being hearkened by him to wanting to cross an ocean, though having to account for all the possible, innumerable factors that could lead to such an outcome),
Social Influencing (Although aided immensely by his psychic powers, the Emperor is nonetheless an extremely eloquent speaker, a trait inherited by his son Lorgar, which has allowed both of them to pacify hostile worlds without a single shot being fired),
Holy Manipulation (His mere presence is dangerous and destructive upon the servants of the Dark Gods, especially daemons, and his creations such as Living Saints retain this aspect, to a lesser extent),
Life/Death Manipulation (Has shown the capability to bring other being back to life, and should also be capable of outright making people drop dead by manipulating their life energy),
Light Manipulation (The Emperor usually appears as a magnificent giant man of shining radiance, with said light being physical and spiritual in equal parts, and downright destructive to the forces of Chaos),
Paralysis Inducement (If the Emperor so chooses, he can paralyze those with weaker will with his aura alone), Preparation, Invisibility (Should be capable of making himself invisible),
Acausality (Type 4; the Emperor's soul perceives time differently, existing beyond the normal timestream)
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