Sakura Matou (間桐 桜, Matō Sakura?) is the Sakura Matou of the alternate reality from which Miyu Edelfelt and the Ainsworth family originate. She is the Card User of a Berserker Class Card from an unknown Ainsworth Holy Grail War.
Sakura's life initally resembled her main counterpart, being sold to the Matou and being tortured by Zouken and the Crest Worms. However, five years ago, the Fourth Ainsworth Grail War occurred and killed, among others, the entire Matou family, leaving her as the only surviving Matou. This is implied from Sakura's comment that her brother has been dead for a long time, and Shinji, upon remembering his death, making reference to the day of the Fourth War along with "Me, grandfather, everyone."
At some point in the past, Sakura's daily life seemingly mirrored that of her usual counterpart, going to school and taking part in Archery club activities. While the extent of her relationship with Shirou Emiya is unclear, it is apparent she had developed a strong infatuation with him at some point in the past.
During the period of the Fifth Ainsworth Holy Grail, she was given an Archer Class Card that was supposed to be the Card of Gilgamesh and she wanted to give it to Shirou in order to allow him to participate in the war. They are attacked by her deceased brother, Shinji Matou, whose mind was placed into a Doll body. As she tries to Install the Card to protect Shirou, it's revealed that it was only a Nameless Class Card because the Ainsworths were aware that she would eventually betray them.
She is ultimately killed by Shinji's Assassin Class Card's Noble Phantasm, Zabaniya: Dead Heartbeat Melody and her body is engulfed by a black shadow. She later receives the same treatment as her brother and is place into a Doll body and given a Berserker Class Card to act as a war doll.
Due to the implication of having five less years of abuse by the Matous before their destruction, Sakura has a much stronger and independent persona than her main counterpart, being able to express herself more freely.
Prior to her death, Sakura exhibited a much more confident and cheerful persona, even teasing Shirou for 'being mean' for never talking to her about his problems. She only briefly shows her demure, closed-off personality when inquired about her past. Her confidence is shown when she was willing to fight her brother to defend Shirou, stating that even if Shirou rejected her, she still loves him so she will protect him.
Having her personality damaged after being brought back to life, Sakura appears to be mentally unbalanced, possessing an obsessive disposition towards the Shirou Emiya of her world. This goes to the extent of wishing to kill those whom she perceives as getting in the way of this relationship. She considers herself the only one who can truly understand and love Shirou, the only one who can touch him and in turn be touched by him and when pushed, the only one permitted to kill him.
This imbalance is exploited by Julian Ainsworth, who, taking on Shirou's image, manipulates Sakura to do his bidding. When being spoken to by Julian's illusion, Sakura becomes distinctly more placid, accepting his instruction with minimal resistance. At this time, she seems to be under the impression that she still had club activities to perform, and when corrected, states that she has been absent minded of late, showing a somewhat disassociation between herself and the current situation.
Fate/kaleid liner PRISMA☆ILLYA 3rei!!Edit
As a Doll, Sakura first appears as the last line of defense for Julian when Shirou attacks him. Seemingly appearing from the mud below Julian's feet, she attacks using the power of the Berserker, Lancelot. Catching him by surprise, she severely wounds him. Stating that she had been waiting for him for a very long time, she is attacked from behind by Miyu, who uses the Archer class card to attack.
Despite the onslaught of weapons Miyu uses, Sakura is able to take control of them. Before Miyu can launch into another barrage however, her personality starts to be overtaken by that of her own class card, and Julian interrupts, taking the Archer card from her.
No longer possessing that power, Sakura proves overwhelming, nearly killing Miyu before Julian once again intervenes. Using the power of his Assassin class card, Julian restrains Sakura and, taking Shirou's image, convinces her to halt her assault. She is last seen being dragged back into the mud by the Assassin's Noble Phantasm.
She is brought back following the return of the Ainsworths in order to act as a guard of the pathway leading to Julian and Pandora's Box. She becomes the opponent of Chloe von Einzbern and Miyu who were trying to pass her vigilance. During their fight, she first faces Kuro who was in reality making Sakura reach her limits and buying time to allow Miyu to poison Sakura with her Assassin Class Card of Hassan of Serenity. Enraged, Sakura summons black ribbons in order to clean up the poison.
They are revealed to be an Imaginary Element and Imaginary Numbers and she covers up herself with them. As she blocks a powerful beam shot by Miyu using the bridge where they were to protect herself, she is injured by Miyu's Schneiden. She then manages to steal Kuro's projected Rule Breaker and as she tries to stab her with it, Miyu pierces Sakura with Gáe Bolg. As the weapon has no effect, Miyu notices that the Doll never had a heart.
Suffering from the previous attack, Sakura jumps in the water as she is asking why Shirou isn't coming to save her.
As a member of the Archery Club, it could also be assumed that she has some ability with a bow and arrow. Whether it is because of her status as a Doll or the way Shinji's Noble Phantasm killed her, Sakura seems to not possess a heart. This caused Gáe Bolg, a spear that reverses causality to always strike the heart, to miss as Sakura is "an already-dead person without a heart".
Berserker Class CardEdit
Sakura seems to be imbued with the powers of Lancelot of the Lake, as he appeared in Fate/Zero. Whether this ability has been granted from a class card, or via interacting with the mud from which the corrupted heroic spirits appeared, was unclear but later on it is revealed that she was installed with a card since 2 months, making her more like an evil wraith of her old self. It gives her use of Lancelot's most devastating skill Knight of Owner, which allows her to use the armaments of others as her own, making her particularly effective against the likes of Shirou Emiya and Gilgamesh.
Imaginary Element and Imaginary NumbersEdit
After being poisoned, Sakura as a Doll shows the capacity to summon black ribbons resembling the Black Shadow in Heaven's Feel. Rin Tohsaka describes it as a rare element that doesn't belong to any of the Five Great Elements. A natural-born element imaginary element that was further developed and brought out thanks to the Matou clan's magical attribute, absorbing and binding. It is noted to be the worst enemy of Chloe von Einzbern because it can even absorb Heroic Spirits into one's own body. Upon touching Kuro, her fingers become paralyzed and when it touches Hassan of Serenity's poisoned body, it absorbs it.
She is able to surround her body with them, forming a black dress and a mask. It then produces a black mist with an unobservable imaginary numbers domain surrounding the area, which prevented Chloe from teleporting in that area.