William Weasley

William "Bill" Weasley is a student at Hogwarts who got sorted into Gryffindor. The first child of Arthur and Molly Weasley (née Prewett) and the eldest brother of Charlie, Percy, Fred, George, Ron, and Ginny. He attended Hogwarts School of Witchcraft and Wizardry and was both a prefect and Head Boy.

School years
By his third year, Bill had become very popular among the other students and was regarded by many, including Rowan Khanna, as one of the bravest and most gifted students of his year. Usually found practicing defensive spells in the Training Grounds, he was approached by Squiggly Squinquargesimus a student in his year, who asked him for help investigating the Cursed Vaults. To this, Bill heartily agreed, voicing the opinion that the cursed ice that had begun to spread throughout the school because someone had been meddling with one or more of said vaults, after all, was posing a threat to the entire school and he would gladly do whatever he could to help resolve the dire situation, expressing excitement at the prospect of his first "curse-breaking adventure". In preparation for entering the vault, Bill taught Squiggly the Fire-Making Spell, practiced dueling and studied all known information about the vaults, and learned it's history. It was through all this that Bill developed feelings for Squiggly, the two started dating, and together with a group of friends they hunted down all of the four curse vaults and found the secrets that laid within them.

Guards of the Unknown
However while working on the fourth vault Bill and the others from the Guards of the Unknown were betrayed by Rakepick a professor of theirs and a person Bill looked up to a lot. Rakepick tried to kill Ben using the killing curse but Rowan jumped before it and died instantly. Rowan's death hit hard on all members of the guards Squiggly and Bill would often fight because of this which caused them to split up after graduations. Bill joined the First Order still furious by everything that happened. He hoped to become supreme leader so he could hunt down Rakepick and other evil organizations so he could, in his opinion protect Squiggly.

The beginning of the end
When the war started Squiggly and Bill joined the others in the Order of the Phoenix together with Charlie and Tonks Bill and Squiggly fought from inside the castle. Bill and Squiggly were spotted close to each other back to back. They fought hard and eventually Tonks and Charlie left to defend another part. During the battle, Bill apologized to Squiggly about the First Order and she in return apologized for betraying him and the guards. Once Voldemort was defeated the two shared a tight hug and had their last conversation before walking to the others near the entrance gate, their hands intertwined tightly when they reached their friends they shared one last hug neither wanting to ever let go before Bill let go and walked to his family to mourn his brother.

Later life
Bill never married but enjoyed a life of peace with his brother Charlie in Romania. He would often visit his friends and Squiggly, even helping them by babysitting or other stuff. Bill worked at Gringotts some more but quickly retired due too be wealthy enough to keep himself and his loved ones alive and happy.

Magical skills and abilities

 * Defense Against the Dark Arts: Bill showed a natural flair for Defence Against the Dark Arts. During his time as a student, he would often be found on the school's Training Grounds, practicing defensive and offensive spells on mechanical Death Eater dummies. As a Curse Breaker, Bill was naturally skilled in counter-curses, and his skill was such that both he and Albus Dumbledore felt that he had much to teach his former schoolmates after his graduation from school, whom he was permitted to visit in between assignments from Gringotts Wizarding Bank in order to tutor them in powerful defensive charms in order to prepare them for any potential encounters they might have with Patricia Rakepick or for other reasons needed to defend themselves.
 * Arithmancy: Since becoming a Curse Breaker required at least an O.W.L. in Arithmancy, it is reasonable and logical to deduce that Bill was skilled in this subject and that he achieved a high grade in his O.W.L. in order to qualify for his career training.
 * Dueling: Bill was shown to be a highly skillful duellist, as evidenced by how, by his fourth year of study at Hogwarts, a fellow fourth-year advised Squiggly to seek him out if she sought to learn how to duel, claiming that the prefect-to-be already then was one of the most accomplished duellists at Hogwarts. As an adult, he participated in and survived numerous battles of the Second Wizarding War — the Battle of the Astronomy Tower, the Battle of the Seven Potters, and the Battle of Hogwarts, showing his considerable talent and skill in martial magic.
 * Transfiguration: Bill was shown to be proficient in this branch of magic, as he was able to swiftly conjure table cloths out of thin air in 1994 at The Burrow, as well as successfully using the Vanishing Spell to vanish a bundle of scrolls whilst cleaning 12 Grimmauld Place in 1995. Conjuration and Vanishment are both very advanced forms of transfiguration, showing his competency in this field.
 * Charms: Bill was shown to be proficient with the casting of charms. He could successfully perform everyday charms such as the Levitation Charm, Mending Charm, and Fire-Making Spell without difficulty. He was even capable of producing a non-corporeal Patronus, a mark of superior magical ability and talent, given the immense difficulty of casting such an advanced and powerful protective charm.
 * Care of Magical Creatures: As he worked for Gringotts as a Curse-Breaker, Bill was very skillful in interacting with Goblins and other magical creatures, such as Nifflers. He was knowledgeable about wizard-goblin relations for his work, during which he used to gauge where the goblins' loyalties lay, and when he realized that Harry was planning something with Griphook during his hunt for Helga Hufflepuff's Cup, he counseled Harry on the way goblins perceived things and warned him not to betray Griphook. He stated that by goblin standards, the maker of an item such as Godric Gryffindor's Sword, not the purchaser, was the rightful owner and that the item is required to be returned to its maker after the death of the purchaser.
 * History of Magic: Bill was very knowledgeable about magical history, which normally was considered a boring subject by many students, as he referenced it during his discussion with Harry regarding Goblin's ideals of ownership, showing he had a strong understanding of Goblin history.
 * Spell creation: Bill accomplished the advanced magical art of inventing new spells, having created a modified cursed barrier to prevent Death Eaters from entering a vicinity.
 * Dark Arts: Bill was surprisingly skilled with dark magic, as he successfully invented his own curse, a potent dark charm of the highest severity. His modified cursed barrier was powerful enough to prevent Death Eaters from penetrating it, which is very impressive dark magic. He was also capable enough with dark charms that he was able to teach his Hogwarts friends in his sixth year how to perform the Ear-shrivelling Curse and the Langlock jinx.