This is my first time doing this uwu. They're at their respective power levels. No special boosts that they could not gain on their own. Aka The special seals That require The sage of six paths. etc. All abilities allowed. Thing to note-
Also for those who dont know how kaguyas immortality works, Since allot of people say it isnt real or it means life wise etc.
IT means In the way a bijju, And jubbi cant really die. They will come back after death.
And they are basically just pieces of kaguya so kaguya would do the same thing, which is what the immortality refers to. hence why they had to seal her away.
If you think the battle will be funner if her losing counts on the first death ( aka even when she revives it'll still be a loss)
Oh i've got an analogy. A phoenix, dies but comes back. Tada.