[quote]These rings multiply the attacks dealt by the part of the body they surround. Not like, multiplying the force, the rings simply travel after the blow and strike the target in imediate succession once the blow collides.[/quote]

I think that's something like from the Anime known as "Toriko". In that, the main character, Toriko, has an ability called the "Spike Punch". The ability basically is a strong punch, that hits with the force of the initial attack once, then again, then again, and so on... a multiple of times equal to what he can perform at that point on the series. Basically, delivering the same attack multiple times in quick succession to the same exact area, causing significant damage compared to a standard attack.