Whenever a Jinchuriki goes Bijuu transformation, he transforms himself and not a separate entity is formed. But same is not the case with Obito.
The final form of Juubi(which I expected to be a super badass monster and not a ****ing tree) is a separate entity and hence not a transformation. But if that is the case, then other jinchurikis must be able to do that as well
The final form of Juubi(which I expected to be a super badass monster and not a ****ing tree) is a separate entity and hence not a transformation. But if that is the case, then other jinchurikis must be able to do that as well