If it wasn't Muku's body, it would have been a spear instead of a punch. And Nightmare would have been killed on the spot... probably.
The combo didn't stop there. Hope also made her move. She summoned all the grey poison she could and formed a huge serpent with it then...
WHOOSH!
It charged forward without waiting for Nightmare to get up and smashed hard into it.
Since she didn't have Emily's unique control, she didn't dare cover Muku with the poison, instead she made ut avoid him completely at focus solely on the armour. Something that was hard but doable.
And it managed to deal further damage to the already ruined armour.
Audrey made her move after. She summoned a humongous blood fist in the sky. Then...
WOOOO!
BANG!
It smashed directly on top of Nightmare who was struggling to get up. Then it disappeared into nothingness.
The last one who regained her power was Jade. Her method of attack was way more straightforward.
