I swung my greatsword at Hogwarts

Introduction: The least Slytherin-like Slytherin.There is a saying in the Slytherin lounge, "The disobedient little wizard will be eaten by the night devil." He is the master of the stars shining in Hogwarts, and the night devil that the enemy fears.Glory made him the pride of Slytherin.When the Dark Lord came, he said that sentence, "Weapons, I need a lot of weapons." With his left hand stick and right hand big sword, everyone would shout for him: "Damn the sorting hat