 As the Rave Master, Haru carries a special sword called the "Ten Commandments" or TCM, (or the "Ten Powers" in the English dub) that can change from its "Eisenmeteor" form to nine other forms once the Rave Stones are embedded into it.During the finale, it was found that Haru cannot use the last sword because the sword was originally forged for Shiba.This encourages Musica to forge Haru his own sword, where it becomes the tenth sword called "Ravelt", and it later becomes the default form.