Quote Originally Posted by Uchiha Barles
His trump card might buy him some time, but I doubt it's even going to come close to defeating the bag of tricks and sheer power that this manifestation of the nine tails has in store.
I'll do you one better. I'll go ahead and say that he won't be able to even handle a 7 tails. At this rate in the battle, I'd say unless that last move in the last frame of the last chapter was huge and really powerful, he's toast against the 7+ tails. And at 8, the fox will probably almost fully come out, and "naruto" will be gone from the scene.