Hogwarts: Seamus, the Explosives Prodigy

Harry Potter's dormmate, the naturally gifted demolition wizard Seamus Finnigan, went from being a student who blew up cauldrons to Hogwarts' chief combat instructor, redefining how combat magic works. His publications include *Dark Magic Strikes: Range, Rate of Fire, and Suppression Tactics* and *On the Mass Deployment of Ballistic Spells*. In class, Seamus patiently trains the strongest dueling wizards in the school. "Potter, let's see what you've learned in Dark Magic Strikes. If you needed to find a Dark wizard, where would you look?" "I'd use a Horcrux as a stepping stone to enter the soul-realm broadcast domain and search, sir." "If they showed hostile intent, how would you respond?" "First, I'd use the Aether Shock spell you taught us to disrupt their senses, preventing them from Apparating in to attack or escape. Then I'd send my Patronus ahead to pinpoint their coordinates, and finally unleash a squadron of exploding bats for a saturation strike." "Why is the hair on the bats you conjured so greasy? And what would you do if you found out the target had no nose?" "Oh, we'd probably need to send two squads, Seamus." "How many times have I told you? At work, you address me by my title!" "Yes, Headmaster." (Keywords: firepower inadequacy anxiety / wild ideas about a military magic system / canon characterization, no OOC)