Between A and S Rank
The Metal Release (木遁, Kaneton; English TV "Metal Style") jutsu are a combination of earth, fire and water style chakra. Metal Release is not a nature affinity as it is not part of the five basic elements and is only the simultaneous usage of three elements earth, fire and water (or wind). Unknown to most, fire style melts down the minerals in earth style, and is then cooled down into metal by wind style - Kaneton. This process is to fast to be noticed, though. Using Metal Release, the user can turn their chakra into objects that the user can;the metal can become the metal the land the user is on has the most of. The only apparent weakness of the Metal Release is it's weakness to Ice Release ninjutsu.