Seeing how the Rennegan allowed Nagato to master any elemental affinity by himself. Could it be that eating Shinjuu’s chakra fruit gave Kaguya some sort of enlightenment or made her one with Nature Itself? Giving her a mastery of not just raw chakra output, but elemental chakra flow (Like bending from the Avatar Last air bender series)
Idea originated from Juubi’s Tenpenchi and the panel with Kaguya holding her arms out and Lighting striking before her.(although it might just be a normal thunder storm was occurring)
Idea originated from Juubi’s Tenpenchi and the panel with Kaguya holding her arms out and Lighting striking before her.(although it might just be a normal thunder storm was occurring)