i like the move its a good idea if they can make it but it should hurt him a little, take some fraction of his health. he probably was wanting to keep enought kai and health to get the hell off of earth. with buu it was kill or die trying to save his family and the earth for once. back then all he wanted was imortal life you think he would saty away from using an instant death thing. but the thing im getting at is im sure it hurt him at least a little. you could tele real fast and do it and nobody could hurt you cuz blasts would only lower its power not damage they only time you cant get hit is a ps or a transformation and thats neither so think of some weakness or do damage to him when he does it thats all.