Mattrina

Mattrina is a fan fiction original character on fanfiction.net created by DisneyVillain. She is a super genius 16-year old (17 in "Gaston Meets the Titans") with an IQ of 290 and her best friend is Terra, who admitted to faking her amnesia and rejoined the Titans and is officially Beast Boy's girlfriend. She is also Beast Boy's long-lost older sister

In the first story, "Mattrina", she rescues the Teen Titans and the Jump City Department store from Slade when he stole several shockwave generators from her lab. After being examined by Raven, she is accapted into the Teen Titans.

In the second story, "Mattrina and Beast Boy: Siblings?" the Titans go to the Jump City Resevoir when Slade attacks it. He had attempted to poison Jump City's water supply. Mattrina manages to stop the poison from getting out but finds that the other Titans had been poisoned. Slade told them that unless they wanted the antidote, Mattrina would have to become his apprentice. Mattrina refuses to do so and witht he aid of the police, brings the poisoned Titans to the Tower where she takes a sample of their blood to analyze the poison. When she sees Beast Boy's blood, she gasps. She whips up the antidote and saves the Titans when they asked why she gasped. She explains that by examing Beast Boy's blood, she learned that he is her little brother.

In the Inuyasha crossover, "World's Are Colliding," The protagonists of "Inuyasha had cornered Naraku, when he openes a portal sending them all to Jump City. After meeting Slade announces that he wants to marry Mattrina, despite her being 16.  If she refused he would have 100 giant Slade-bots destroy Jump City.  She challenges Slade to a challenge that if she defeated all the Slade-bots, Slade would surrender and if she lost, she would marry Slade.  The next day, Mattrina uses a jetpack and her solar guns to battle the Slade-bots.  With expert maneuvering and skilled shooting, she actually defeats them all.  Slade attacks her and destroys her solar guns but is repeled by the arrival of the Titans and Inuyasha and his friends.  Slade escapes and is greeted by Naraku who offers an alliance.  The next day, she leads Rin, Jaken, Ah-Un, and Sesshomaru to her new lab under the sea where she repairs her solar guns and upgrades them. Rin screams when she sees some monsters. Mattrina tells her that they are giant robots she's building in case of giant monsters. A giant incarnation of Naraku half the size of the tower attacks the city. A combined attack from Mattrina's solar guns, Inuyasha's Tetsaiga, and Sesshomaru's Tokijin ends the fight quickly. However, Naraku sees Mattrina and falls in love with her. They go home and everyone goes to sleep. Sesshomaru looks at Mattrina and realizes he's in love with a human. The next day, they see three monsters headed for Jump City with one looking seriously hurt. Inuyasha assumed they were incarnations of Naraku's, only to be told by Mattrina that they are Godzilla, Rhodan, and Mothra. Using a translator, Godzilla tells her that that a man with long, black hair placed something tiny inside King Ghidorah making him stronger. Knowing it was Naraku, he appears before them, he announces that unless Mattrina marries him, Ghidorah would to destroy the city. He then tells them to look behind them. They see Slade and Naraku makes Slade stab his hands. Slade does so and begins to lose a lot of blood. He then faints. Despite being a villain, they decided to save Slade's life. After saving him, Robin makes Mattrina second-in-command of the Teen Titans and then they go into battle against Ghidorah. Kagome sees the Jewel Shard in the middle head. Mattrina grabs he jetpack and flew to the middle head when Ghidorah's lightning breath destroyed the jetpack. Falling, she grabs a foldable hoverboard and makes her way to the middle head and removes the Jewel Shard. Weakened, Mattrina summons her giant robots and with many attacks coming at him Ghidorah dies. The next day, a carnival is announced and everyone goes. Mattrina goes to the arcade along with Sessmomaru and crew. They meet another one of Naraku's incarnations, named Basuke, the Game King. Basuke defeats Sesshomaru in a fight and explains that he has a force field around him that can only be lifted by Naraku or if he's defeated in a game. Basuke challenges Mattrina to "Dance Dance Revolution," with Mattrina claiming victory. His invincibility gone, he is forced to retreat. Mattrina helps Sesshomaru up, resulting in him hugging her and admitting his love for her. He asks her out, only to be gently turned down, stating that when Naraku is beaten, they would head back to the Feudal Era. Afterwards, a mysterious man sends a package in a mailbin and is attacked by Albert Wesker from "Resident Evil." the next day, Mattrina gets the packageand opens it. Inside is a beautiful sword, the hilt encrusted with jewels and small despression in it. Telling Beast Boy that it is a family heirloom from their uncle named Jack, she goes to train with it when a Nemesis is shown on the monitor. Engaging the monster in battle, Mattrina notices that the monster has not attacked anything when it had the chance. A man named Frank Wallace appears from a helicopter and reveals that the Nemesis is none other than Jack. Wesker appears and kills Frank and injures Robin. Sesshomaru resurrects Frank nd they take Robin to the tower to heal. Now in charge, Mattrina uses the translator to speak with Jack. Jack admits that Wesker is his brother. Despite this horrific truth, they agree that Wesker must be defeated. They head to an old abandoned building and fight several zombies and mutants, with Nemesis fighting a Tyrant. Mattrina and Beast Boy encounter Wesker who uses a force field to keep the others at bay. He offers both Beast Boy and Mattrina a chance to join him. When they refuse, Wesker proceeds to beat them both up, even able to harm Beast Boy when he morphs into a T-Rex. Wesker is about to snap Mattrina's neck when she is saved by none other than Slade, who owed the Titans a debt. Mattrina slashes Wesker with her sword, injuring him while Beast Boy turn into his werebest form and claws at Wesker. Beaten he presses a self-destruct and tries to get on a motorcycle. Mattrina steals it and goes to look for Jack while the others escape. By the time the others get out, the building explodes with no sign of Mattrina. This make Sesshomaru shed tears for the first time. A shadow appears and Mattrina appears with Nemesis safe and sound. She explains she escaped through a window. As thanks, Slade is allowed to escape. Mattrina heads to her lab to find a way to reverse the mutation when she sees it in a mess. Jaken confesses to doing it and Mattrina forces him to clean it up. As he cleans it up, Mattrina gets a call from the Justice League. They tell her that the reactor core is going haywire and if it doesn't stop, it would explode, killing the entire Justice League. Mattrina heads for her spacecraft and puts her brother in charge, stating she has to cram 14 years of sisterly love to her brother as fast as she can. And not trusting Jaken, she asks Sesshomaru to watch her lab, promising him a date if he did. Sesshomaru decides to do it. Mattrina makes her way to the reactor core and asks if the reactor is connected to a computer. Batman says it's connected to the Watchtower's mainframe computer. Doing a little hacking, she discovers that the vents in the reactor are closed, building pressure. She attempts to open them when three triangular dots appeared on the screen. It turns out that Brainiac copied his data into the mainframe computer, building its strength. He plans to kill Superman by blowing up the Watchtower with no care who else would die. Knowing that Brainiac is a computer file, she tries to send the data into a "Diablo" CD with the intention of destroying it afterwards. Though she succeeds in this, Brainiac makes sure the CD can't get out. Anticipating this, she gets out a floppy disk. She explains that she has a computer program she developed that puts files into game villains. Should the villain be defeated, the file would be deleted, no matter what. Brainiac places himself into the Butcher, and which made the demon even stronger. However, despite the increased power, Mattrina used a strategy that defeated the Butcher and deleted Brainiac. The vents opened up and the reactor calmed down. Mattrina headed home and took Sesshomaru on a date, with Beast Boy and Terra tagging along as a double date. They head to a movie theater when they notice it's on fire. Putting out the fire and saving everyone, the manager of the theater tells them that Basuke did it. Basuke challenges Mattrina to a game of pinball. Underestimating her, he quits after losing one life. Mattrina defeats his score, defeating him a second time. He lunges at Mattrina, only to be killed when she electrocutes him with a glove that amplifies her bio-electric crrent and shoots it out in her hand. MAttrina and Sesshomaru sit down and see Beast Boy kissing Terra. Mattrina realizes she loves Sesshomaru and they lean in to kiss only for Sesshomaru to be knocked out by Naraku. He takes the Jewel Shard from Mattrina and fully rebuilds the Sacred Jewel. After putting it inside of him, he becomes a god. He takes down Beast Boy and Terra and takes Mattrina to the remains of the old library where Raven released Trigon. Sesshomaru, Beast Boy and Terra managed to get to Titans Tower and Robin is fully healed. Beast Boy heads to the lab and activated a helicopter UAV which led them to the old library. Meanwhile, Naraku reveals to Mattrina that Wesker survived the explosion and is necessary in his plan to ensure that Mattrina becomes his wife. He tells her that Wesker will perform a Dejuhas. When a demon wants to marry a human and the human refuses, a relative of the human can perform the Dejuhas, which ensures that the human has no choice but to marry the demon. They leave her in a small room. Sesshomaru reaches the door and rescues Mattrina, who finally kissed him. They try to escape when the exit closes. They turn and see Wesker and Narku on a balcony with a thousand zombieson the bottom. Mattrina is almost bit when she is saved by Slade. They all decide to split into three team. Mattrina, Slade, Inuyasha, Beast Boy, Terra, and Jack were the team to take down Wesker. Sesshomaru, alone wanted to be the one to fight Naraku. The rest would fight the undead. Due to their teamwork, Mattrina's team was able to defeat Wesker. Wesker then jammed a device into his skull that gathered the T-Virus from everywhere within a one mile radius and transfer it into him. All the zombies die and Wesker mutates into a 400ft. Nemesis with its legs fused to the ground. Jack is unaffected because Mattrina removed the T-Virus within him to prevent further mutation. Mattrina summons her robots that merge together to form the Titan Super Robot. Mattrina, piloting the massive mechanicle being, defeats Wesker, and he demutates into a normal human. Mattrina punches him and tells him he's under arrest. Meanwhile Sesshomaru is losing to Naraku when Mattrina and the others arrive. Mattrina tells Kagome to fill her solar guns with her priestess powers. Mattrina takes her solar guns and shoots Naraku in the heart and the Jewel comes out. Naraku, no longer a god, loses his love for Mattrina and decides to kill her when Sesshomaru uses the Jewel along with with his Tokijin to destroy Naraku. All but Inuyasha and Kagome head home. Mattrina uses a teleporter beam to send Kagome and Inuyasha back to Japan. Once they go through the Bone Eaters Well, the realize that the Jewel is gone. Mattrina wished it away so it could never be used for evil again. Still sad about Sesshomaru, Mattrina creates the antimutagen which makes Jack human. Mattrina is no longer sad and the story ends.