Mercedes Balance Analysis

As a lover of odd builds/experimental classes, I'm mostly interested in whether Unicorn Spike has a weapon-restriction or not. It's the only attacking skill on Mercedes that doesn't involve any Bowgun sprites, so it could possibly work with any weapon.

UA pure-Str gunslingers are amazing with Shark Wave, these would be even more fun with all the speed buffs. P: You would be a beginner with massive speed that could shoot unicorns~<3