Mr Numbers learns Fuuton with sempai Sharingdork

[Kuro Tamashi]

*kuro preformed the two handsigns then inhaled and focused fuuton chakra into his lunhs then pushed the fuuton chakra air into his mouth then pushed it out and using shape manipulation turned it into a flying demon shiriken*

Pro to this is it doesn't need a weapon but has the option of one.

Con without a weapon it requires hand signs and shape manipulation