Hogwarts: My Name Is the Unforgivable Curse

"Hello there, stranger. What's your name, wizard?" "Avada Kedavra." "What the—what are you doing?!" "...That's my name. Avada Kedavra. Avada Kendavia." "...Who gave you that ridiculous name?" "Word is it came from the Department of Mysteries." "You have a grudge against the Ministry?" "Nope. They wouldn't dare." "...So what do I call you? Can't exactly greet you with a Killing Curse every time." "You may call me: the Catalyst of the Magical Tech Explosion, the Pioneer of Muggles Probing Magic, the Ruler of the Hufflepuff Kitchen, the Ducklord, the Younofull..."