[@Gentlemanvaultboy] the Musou attack might be the best out of that bunch, but that doesn't preclude you from doing something with the Rabbid spirit, which would be separate from level-ups unless you wanted to use the level-up to increase whatever you get from it further, which is possible since Rabbid Luigi has a bunch of weapons and abilities. If you were to take Rabbid Luigi as a Strength, you'd get more battle prowess and a few skills, but you wouldn't get any of his distinctive abilities.