I don't think we have any Champion who uses an umbrella as a weapon (RWBY SPOILERS!!!!)
ITT: Forecast Janna doesn't count.
Just finished watching today's episode of RWBY, and I like what I saw, especially the new girl, Neo. Bamboozles Yang by creating an illusion of herself and Torchwick to escape, and she has a cool umbrella as a weapon. Reminds me a bit of Yukari Yakumo. XD
This makes me wonder, why is there no "prim and proper lady" who uses a little Parasol-Fu as her combat style?