Amenomasatsu

Amenomasatsu is a unique weapon wielded by Satoshi Mamoru. It has the unique ability of altering the friction of itself and objects it comes into contact with. It has shown the ability to alter the friction of the area around it to an extent as well.

Being a uniquely forged sword with a seal applied to it, it has no friction once drawn. It cuts through objects with no friction, but exerts such extreme friction on the objects it cuts through that it can set them on fire and/or melt nearly anything it touches. Because it has no friction itself, it can glide through the air without resistance, allowing for maneuvers and attacks as fast as the user it able to physically move.

Because of its attributes, it greatly enhances certain elemental nature transformations, most notably Fire Release and Lightning Release.