hmm upsmash and side B on ground is pretty cool..
i'd love if the air version of Side B had the teleport effect too.. and maybe had the effect start a little earlier.. also i suggest adding the reappear code to all the actions where you take damage so you dont stay invisible.
The thing is I`ve tried everything I could about this. But it hasn`t worked. i don`t think It will allow him. I`ve tried 5 horus on it. D: Btw, I`m going to probably make his Up B Covered in Blue Fire.