does KB use chakra?
i've tried locating a chapter page in which any character states KB uses up a quantity of chakra
the term commonly used is divides chakra not once has anyone stated it uses chakra
heres the wiki
even back when naruto was learning how to use the QB, the only warning naruto was given was that the kyuubi would consume his chakra easier cuase it was divided and not used up even tobirama the creator said divided
Similar to the basic Clone Technique, this technique creates copies of the user. However, these clones are corporeal, not illusions. The user's chakra is evenly distributed among every clone, giving each clone an equal fraction of the user's overall power. The clones are capable of performing techniques on their own and can even bleed, but will usually disperse after hit by a strong enough force. The clones can also disperse on their own or be dispelled by the user of the technique. Shadow clones can't be distinguished from the actual person even by dōjutsu because the clones have the exact same amount of chakra as the original, and aren't made from any other substance like water clones are for example.
Because of the manner in which the clones are created, the user must divide their chakra among the clones, potentially using up all their chakra fairly quickly if the user is low on chakra, or makes too many clones. This is especially problematic when the Multiple Shadow Clone Technique is used; whereas the normal version will only create a few clones, the Multiple Shadow Clone Technique can create hundreds.
MY OPINION is that KB doesnt use chakra but divides it, thus the reason naruto can spam it without running of chakra and yes he does get tired but from the fatigue accumulated in said battle and not from the tech (excluding chakra consumption of clone) itself
further proved by naruto sharing his chakra with the alliance why didnt he get tired from sharing his chakra cause dividing chakra and using chakra are 2 different things
what do you think???