Some guy pointed this out and he has a point

[Ryan Ensign]

>Bijuus
>Kamui
>'Nuff said

 

[SeBa]

he is already in the kamui world .. i don't think he can send part's of his body in other place... )

 

[mrsaphens]

He could just use this wtf katon which was bigger than the ****ing juubi and kill kakashi. but no: pis -.-

 

[narutoblitz]

Hashirama cells can heal Obito. Obito also has Rinnegan. It's total plot hax if Kakashi wins.