Law profile states
The creation of the ROOM occurs from the formation of a small circle around the user's hand, which then expands and forms the ROOM itself.
Trafalgar D. Water Law is the captain of the Heart Pirates and one of the eleven pirates dubbed with the moniker "Supernova". He's a very laid-back person, and while his speech is very polite, he has no problem with taking mocking jabs at people or giving them the middle finger. Law ate the...
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Check the all slides you would get to know how potent Barragan ability is.
Anything which is not eternal gets aged/erased.
Let me explain. Law activate his technique and his technique starts to spread and occupy his Target. If law needs to occupy Barragan inside the room his technique should touch Barragan and cover him.
But when law room technique which is activation stage tries to touch Barragan that gets aged/erased.