Board Thread:Episode Discussions/@comment-1251315-20161215125344/@comment-25093611-20161217091929

Ravenlot 27 wrote: Technically, Naruto focused all his chakra cloak in the single hand to tank Toneri's sword, so this moment makes sense. But Sasuke's sword stabbing Naruto is still an inconsistency, since there hasn't been mentioned that Sasuke's new Kusanagi sword possesses any special properties. agree, and theonly way it would make sense is if the chakra-modes (not only naruto but all chakra modes) are actually not incresing durability automatically, the user must know the general directionof the attack and the chakra will subconsciously increase their durability there,

this would explain why sasuke sword was able to stab TTJ-madara and SPSM-naruto but needed electricity infusement in order to easily cut through stones...