ORT: The Final Fighter

ORT is an Ultimate One that previously resided in the Oort Cloud in the far reaches of the galaxy. It is described as the toughest and most inexplicable creature in the world of Magecraft, known for its skin that is both hard, soft, hot, and cold, and a creature that produces energy via internalized nuclear fusion and converting everything it touches into crystal. ORT is so difficult to understand that humanity can only hope that their technology can advance enough to analyse it in the year 3000. It is a being of destruction, who aims to destroy the universe and wipe out all of Proper Human History. ORT resembles a gigantic, metallic insect covered in glowing markings. Its true body resembles a flying saucer, while it’s avatar is one of a large, mechanical spider. ORT communicated telepathically, usually using the voices within it’s database to speak. It will attempt to speak to anyone challenging it telepathically, using voices they know to try and lure them into surrendering into it’s database. When it’s physical form is defeated, ORT will use the Servant data it has collected to turn itself into a Heroic Spirit. Using that, it will summon itself back into the fight as a Servant,

ORT's arrival in the Lostbelt's history 66 million years ago lead to an impact so devastating that it was considered an Mass Extinction-level event, one that incinerated the whole surface and caused the whole super-continent of Pangea to become a volcanic wasteland.

ORT's very presence emits cosmic rays that are lethal to all life without sufficient radiation protection. Even getting near to its branches would give a creature a fatal dose of radiation, even to Servants. The radiation leakage is so bad that the eighth and ninth layers of the 1000-kilometer tall Mictlan - each layer estimated to have at least 1,000,000 kilometers of open space - are completely uninhabitable, both due to poisonous fog and from the cosmic rays emitted from the comatose ORT. These cosmic rays only disappear once a year for 5 days, after which they return and kill anything still on those layers, and even cause electronic equipment such as drones to malfunction and shut down. The only being known to be able to survive on those layers with the gas and rays is Camazotz. The five day period is inferred to be caused by occasional attempted regrowth of the Fantasy Tree's bark reducing the leakage of cosmic rays from ORT temporarily.

ORT's Saint Graph possesses a capacity greater than that of Beast VII U-Olga Marie, who Senji Muramasa believed to already be the strongest on Earth. Compared to the capacity of U-Olga Marie being given an arbitrary value of "level 1,000," Sion Eltnam Sokaris evaluates that she would reach "level 10,000" were she to integrate ORT into herself. Should such an event occur, Chaldea's Excalibur armament would be rendered useless.

As a completely alien lifeform ORT lacks a Concept of Death and is unable to die by natural means, and must be destroyed physically. Tezcatlipoca describes life as one something can die. Even if it's a machine, if it can die its can be considered alive. Regular life, even if every part of its body is replaced with an identical functional copy of itself, will not return to life after having died. Even with advances in medical technology, if a being's heart or brain is destroyed, that being will die. ORT is less like a lifeform and more like phenomenon, something that refuses to die. Even if it dies, ORT will eventually reactivate as long as its shape remains, and do so automatically with no limit to what can be healed. Each and every one of its cells, from its toes to its nervous system to its brain to its heart, are all considered equally unimportant to ORT as every one of its cell contains every one of its functions. When ORT reaches Beni-enma's underworld border in its attempt to climb to the surface, she turns back into Beni-enma Alter and imbues ORT with the Concept of Death.

Some of ORT’s attacks include: Revolution Web: Silver strings thought to normally be used for ORT's interstellar travel are used to bind opponents. Against Servants, this keeps them from being able to escape at will. Ether Drinker: ORT's large-scale spatial interference causes it to steal Magical Energy from opponents. Dark Matter Plankton: ORT absorbs strengthening effects through "strange microbial life" swimming through dark matter. Ernst Union: Through a transmutation effect applied by ORT's metallic tentacles, enemies are given weakening effects upon being struck. Galactica Supercell: ORT generates space storms that continuously damage opponents. Paradigm Inflation: ORT analyzes abilities utilised in front of it, allowing it to partially copy them, and those effects applied to itself are multiplied. Paradox Canceller: Through a high frequency of applying a self-purification process to itself, ORT is able to disassemble any negative effects applied to it and turn them into strengthening effects. Starring Invade: ORT's encroachment on the surrounding environment overwrites any external effects applied to it by the abilities of others. Database Access: By entering it’s database, it can access any attack from a being it has assimilated into itself. This includes all weapons and Noble Phantasms of all Servants, which were assimilated into it.