why does only hagoromo has the yin and yang seal?

[Uchihakil]

As the title says,why does'nt kaguya or 3 eyed jj madara posses the seals?

 

[Ansatsuken]

He not magically get it but he created it.

There was no seals in NV naturally born into existence.

 

[Monxstaa]

Creator duh lol

 

[Uchihakil]

but hamura at a time had a seal since it tokk hamura and hags to seal the juubi

 

[sagemode07]

but hamura at a time had a seal since it tokk hamura and hags to seal the juubi

Plot.
Hago could make it on his own

 

[Gerkak]

Hogoromo learnt how to make the seals

 

[SenseiSama]

Because he needed then to use CT. Hamura doesn't because he made the seals, the Byakugan has the ability to enhance the chakra flow as stated in part 1 which is what the seals were doing.

 

[VongolaX]

Haruma had it at one point too.

I'm positive that those seals were ninshuu.

 

[ninjarasengan]

Unconfirmed...but Hagoromo probably temporarily lent it to Hamura (Like he did with Naruto and Sasuke)

At that point he might not have had the Chakra to create a CT big enough to contain the Juubi on his own.

 

[Lord of Akatsuki]

It was stated to be Hagoromo's Jutsu's (techniques).

 

[KesOnFire]

Hago solos lol