How did Kaguya defeat Jigen/Isshiki after they came to earth?


How did Kaguya defeat Jigen/Isshiki? They say that Isshiki is one of the most
powerful of his clan. How did Kaguya beat him?




It's not confirmed exactly how he got defeated just yet. And please correct me
if I am wrong, but according to Amado, Isshiki dropped his guard and got
attacked suddenly. Also, we don't know if he is one of the most powerful in
the Otsutsuki Clan, but out of all revealed members, I say he is THE most
powerful, I mean, even Naruto and Sasuke had a hard time against him, as Jigen
too.

