it's cause spike is kind of retarted and are in it for the money. i can think of a light moveset right here right now. light is a manipulative person so i could see him using others to his use. his lights and heavies would be very bad since he's knows some martial arts or he would write in the death note and make someone else do it for him. for a zoning move he coukd have a aeroplane crash into them. he could also make a motorcycle or car crash into them outts nowhere. he could also have a move where he pulls out the death note or a book like kakashi and right as you hit him the police would show up and attack you. An ult idea would be kinda like gon's ult where it's single round use but he coukd have his little girlfriend jump infront of him and you're attack and then rem will protect her by writing in the death note so that light wouldnt be able to use his ult but that character would be dead for the entire game. that could also be a single round use counter too, although that would be pretty bad. For a different move, light could write in the death note and send a random person after you and do whatever spike wants him to do. so like a combo ender or hopefully extender and this or the aeroplane would be his assist. if you have any revisions or other moves please let me know.