Huchukaiki

the huchukaiki clan was a not so known clan of water style users, but the members had a secret. they were able to control their own blood, and if that was not enough, they can add metals or materials into their blood, making the user able to summon a coating of the metal or material. this material would coat the blood and give the item made the qualities of the metal or material. like diamond, would make it sharper, while obsidian makes it stronger. they would introduce the metals or materials as a dust form into the kids of the clan, at a very young age. they would slash their chest open and place a charka seal only known to the clan leaders, then place the dust which the seal would make the blood absorb, some which were not able to survive. 