User blog comment:WeissSchnee/Weapon Trouble/@comment-4109747-20140319055717

I do think you can use the Gatling/Hammer idea, since there is probably enough of a difference between your weapon and Nora's for it not to be considered plagiarized.

If not go with the lance idea.

The only other thing I could think of maybe is a shield/sword combo. (like Heathcliff's from Sword Art Online)