Board Thread:Naruto Discussions/@comment-34436445-20180627113230/@comment-3568954-20180630053307

Thekillman

here is the thing. we can not say for sure that his ability to use it 5 minutes straight is because of hashirama's cells. we can say for sure that the no blindness is because of hashirama's cells but not the 5 minute's or the spamming of it.

hear me out

the first time he uses Kamui is before he gains the Mangekyou sharingan when the boulder falls on him. the ability activated in a base sharingan meaning its a unique power of his base sharingan not his Mangekyou Sharingan.

so its possible that he would be able to spam it and use it for 5 minutes no matter what. its just it got more powerful when he awakened the MS