do u think kaguya itself is ten tails

[Seventh Sama]

I guess so, Doesn't make sense that she downgraded in power when she became the juubi tho.

 

[Nebula]

Sure, why not.

 

[Ryu D Hyuuga]

After becoming drunk with power she must have tried to absorb shinju then becomes the ten tails with mind.well before it doent have mind ,just a holy tree

That's a pretty good theory