Name: Saber by class, Arturia Pendragon by name
Age: 16 physically
Gender: Female
Appearance: [url=http://safebooru.org//samples/804/sample_abb47889941a3822fe623bb4f271b159d95bd5a1.jpg?809207]"Ex...[/url]
Canon, AU, or OC?: Canon. ... One of the Canons
Universe of Origin: The Nasuvese. One of them.
Personality: Saber is strong-willed and stubborn, as well as very brave and utterly determined. She suppresses her emotions in most situations, though social situations often bring out her insecurities. She considers herself as a warrior first, before anything else. Saber holds little mercy towards opponents. As the king of knights, she has a strong sense of honor. In spite of this strong personality, Saber can become shy and withdrawn in regular social situations due to the previously mentioned insecurities, and it is not too difficult to fluster her. Saber has a deep adoration of good food, very eager to eat any that is given to her.
Abilities/Weapons: Saber is a Servant, a Heroic Spirit constrained to one of the Seven Servant Classes. Obviously, her class is Saber. She is extremely fast and strong, though not the fastest or strongest of Servants. She wears magic armor, which easily deflects mundane weaponry. Purely mundane weapons are incapable of harming her. It will take extremely high-power weapons, or magical weapons, to do damage. Saber is durable, and capable of recovering from grievous injury. She has two out of her three Noble Phantasms, though one is technically magecraft. The first is Invisible Air, which is capable of becoming a sheath that renders her second Noble Phantasm invisible. It can also be used as a projectile. The second is Excalibur, the Sword of Promised Victory. It is an incredibly powerful and holy weapon, a sword that is impossible to break(though this is because it's a Noble Phantasm as well as... being Excalibur). Its most powerful ability is to unleash an immense blast of prana which is capable of killing an immense amount of targets or destroying an entire fortress. She cannot simply repeatedly fire off this this ability, as she lacks Avalon, which gives her a vast amount of prana with which to use for Excalibur. She is also unlikely to use it if there's a risk of collateral damage or killing allies. At most, she could manage one shot per day if there's no risk of collateral damage or killing allies. Saber is also immune to most magic(magical weapons, however, are still dangerous). While this is a defense, it also makes it difficult, if not impossible, to buff or heal her using magic.
Backstory: [url=http://typemoon.wikia.com/wiki/Saber_(Fate/stay_night)#Identity]This gives a rundown! And it's post... some route![/url] And then... she was summoned by an agent of the UMMA. Even more confusing, it was entirely accidental. At the moment, Saber is working as an agent of the UMMA herself. Her master allows her to be independent.
Faction: UMMA

Oh hey there was a post. ^^;

Kaguya? Hmm... make her personality section a bit longer but yeah.