Just because you master 4 elements doesn't mean you can use Gudoudama...Pseudo Juubi Jin.
He can use Gudoudama because he mastered 4 or more nature manipulations.
This, he got 9 minds inside of him lol that are ready to help him, and not only that but their jutsus as well,Not really more like all 9 Bijuu Jinchuriki. Which is probably better than being the Juubi Jinchuriki, because now he's got 9 tailed beats inside him that aren't mindless and want o cooperate with him and help him.
Just because you master 4 elements doesn't mean you can use Gudoudama...
You need 4 or more elements as well as natural energy to use them.
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I know you need to have them but you also need to have the ability to combine them, if not then Hiruzen would also have GudoudamaYou need 4 or more elements as well as natural energy to use them.
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Just because you master 4 elements doesn't mean you can use Gudoudama...
OT: Doesn't have Gedou Mazou
Actually, when Obito absorbed the Juubi and was using the incomplete form of the Gudoudama, Hiruzen did actually state that he must be combining at least 4 different chakra natures. And considering that Naruto seems to be able to use the power of each Bijuu seperately, he has at least 4 chakra natures that he can use