I know this is kinda weird but i think the piece of headband we saw pierce the gourd a few chapters back is gonna come into play not the tools themselves just the headband.
Heres where the headband will come into play i think Madara tore it off himself to reveal his third eye. Kaguya took over Madara maybe madara isnt fully gone maybe hes still inside of her sort of like the juubi was inside of him.
Maybe this sealing technique Naruto and Sasuke got from the So6P will need a piece of the person to seal them away.
If this is the case and madara is still inside of Kaguya maybe using the headband piece from madara will allow Naruto and Sasuke to seal the madara part of her away weakening her enough to allow sasuke and naruto to get the upper hand.
I dont think the tools will actually play any role in sealing kaguya but the headband in conjunction with the So6P sealing tech will play a huge roll not in the defeat of kaguya but in weakening her.
Heres where the headband will come into play i think Madara tore it off himself to reveal his third eye. Kaguya took over Madara maybe madara isnt fully gone maybe hes still inside of her sort of like the juubi was inside of him.
Maybe this sealing technique Naruto and Sasuke got from the So6P will need a piece of the person to seal them away.
If this is the case and madara is still inside of Kaguya maybe using the headband piece from madara will allow Naruto and Sasuke to seal the madara part of her away weakening her enough to allow sasuke and naruto to get the upper hand.
I dont think the tools will actually play any role in sealing kaguya but the headband in conjunction with the So6P sealing tech will play a huge roll not in the defeat of kaguya but in weakening her.