He punch had the same effect on limbo as Naruto's did.Sakura's punch on kaguya is what we call PIS. Kaguya wouldn't even feel sakura's lunch, but because manga had to end by ch700, kishi had to end kaguya by that teamwork. She could have used ice dimension to get out, but no sasuke has amaterasu, ignoring the fact that it saved her last time and sasuke's technique needed a bit of time. These are all PIS. Also, sakura's punch enhanced by the seal got blocked by limbo
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Kaguya is infinite times stronger than limbo.
And she didn't kill Limbo because only senjutsu works on it. Though he don't know if limbo was hurt of not.
The truth is naked, and people tend to laugh at nudityI love you Femme for being such a great comedian.