Board Thread:Versus Debates/@comment-32832770-20170812151353/@comment-5085906-20170819160133

Killer723 wrote: That's the thing, he won't have same abilities as he did when they were merged with him. What exactly do you mean by "merged" with them? If you mean that he had all of them inside him, that's false. Naruto only took chakra from them which enabled him access to Six Paths senjutsu. And there are several reasons to believe that when and if a Tailed Beast gives you chakra, it stays with you forever.

For starters, it's well established that Tailed Beasts are made of pure chakra which allows them to be constantly replenished and never die. That is evidenced by Kushina saying to Minato that they should seal Kurama into her dying body to delay his re-emergence (this is before the whole 'taking your jinchuuriki out of your body means certain death' thing was retconned). That oughta imply that whatever chakra they give to you should remain and constantly replenished itself. But okay, you could make an argument and say 'that doesn't apply to TB chakra, but to the beasts themselves'. Okay, fine. Here's my response to that

We see Killer Bee use Gyuki's tail as a substitution for his body when Team Taka attempts to capture him. Thing is the tail is severed from Gyuki, but the chakra in the tail remains and manages to fool both Sasuke whose Sharingan can tell color and which was barely activated when "Bee" succumbed to his injuries and Karin, arguably the best sensor in the series, who in her barely conscious state could make a distinction between Naruto's chakra and Kurama's chakra. He did that a second time during the Fourth War when he used Gyuki's tail to survive having it extracted from him which proves that Tailed Beast chakra remains even after being separated from its Jinchuuriki. Though let me extend you an olive branch here - I do find it bullshit that Karin couldn't tell the difference between 8 tails chakra and Bee's chakra, especially after having sensed Bee in a prior occasion, but that's not the point.

We also have examples that have been mentioned before like Kinkaku and Ginkaku being able to access V2 Tailed Beast form by just consuming Kurama's flesh and what @Vladosaurus said about needing Rinnegan and chakra of the Nine-Tailed beasts to release Infinite Tsukuyomi, which Naruto and Sasuke did after a prolonged battle.

And for the record, The Last Naruto The Movie was..a little bit off when it came to consistencies. At one point, space physics didn't exist, at another Hinata and base Naruto began floating. Tenseigan powers were barely explained and quite convenient. Naruto had apparently gained some new abilities that were barely fleshed out and KCM Naruto surviving an attack that split the moon in half - I am not saying it's entirely unreliable since I bet you can cherry pick a couple of instances that the powers made sense and didn't go against the established canon, but other than that it was a weird movie.