As we know Naruto only used fuuton element with his Rasenshuriken, which is sad since Naruto could of used his fuuton to make his shadow clones and kunai stronger.
Naruto uses Kunai, he saw how much stronger a weapon gets by infusing fuuton to it, but never uses it.
Naruto learned how to infuse his fuuton element to his Kunai but Naruto relies on Kunai without element.
Naruto Shadow clone can be upgraded to Fuuton Shadow clone, but Naruto doesn't do it.
Both Kakashi with his Raiton Shadow Clone and Itachi Exploding Shadow did it, why not Naruto.
Imagine 1000 fuuton shadow clone, hit them and get injured.
Naruto is crazy relying on Kunai instead of combining Fuuton to his kunai.
Naruto uses Kunai, he saw how much stronger a weapon gets by infusing fuuton to it, but never uses it.
Naruto learned how to infuse his fuuton element to his Kunai but Naruto relies on Kunai without element.
Naruto Shadow clone can be upgraded to Fuuton Shadow clone, but Naruto doesn't do it.
Both Kakashi with his Raiton Shadow Clone and Itachi Exploding Shadow did it, why not Naruto.
Imagine 1000 fuuton shadow clone, hit them and get injured.
Naruto is crazy relying on Kunai instead of combining Fuuton to his kunai.