Just want to say, this is probably the best mod I've EVER played. FPS is a slight issue but its not horrible.
Amazing job on all the new enemies and stages and everything.
I'd love to see some kind of way to merge your weapons (maybe at the crown vault?) (Or maybe make it so that Last Wish also merges your current two weapons), since you can get merged drops. Might be too OP, but it sure would be fun.
Going off what cheesebaron2 said, maybe a weapon similar to blood hammer, but based around bones. Bone Hammer, Bone Screwdriver or something. On kill it should have a chance to drop a bone!