The Thirteenth Dao

Hear me out, hear me out, I just came up with this weapon out of a sudden stroke of genius...

Katana-Machine-Gun: Part Katana, part machine gun!

Like, just imagine... battling against a Heavenly Qi Sword Art Master or something, and just out of nowhere blasting his head open with the Katana-Machine-Gun!

Credit: Lickmytoes