This is a madougu which Fukko obtained during a fight. It is actually a set of claws which are extradordinarily sharp. While not in action, the madougu is in the form of a round stone. When it is in action, it becomes a set of claws.
Air Currents/ Wind: This is just to use wind to form into tornadoes to serve a kind of defense or to create currents that can attack. When combined with Onitsume, it can increase the power of onitsume and can tear almost everything.
The spirit of Wind: This is the power of one of the small beads on Fuujin. The small bead will transform into a cute "mouse" looking animal that in an instant can destroy a spider the size of a giant.