Disclaimer: I own a laptop, all 8 Harry Potter movies and a lot of imagination but sadly I do not own any of the Harry Potter characters.
Severus Snape
I am good at brewing potions. Duh, I am a potions master?
I am good at Occlumency and Legilimency
I am good at scaring students.
I am good at looking like a giant bat.
I am good at dancing hip hop.
Any character requests?