It's her "nullification" ability she can nullify everything (except for "Inevitable Darkness", one of the ULTIMATEVERSE dark power sources and other powers)
WHAT DO UNDERSTREAMERS DO WHEN MC941 BREAKS THE WALL (AGAIN)? DOESN'T ACTUALLY GIVE A BUCK ABT THE WALL; JUST FIXES THE WALL; BEATS UP MC; TRIES NOT TO CRY FOR THE NEWEST WALL DESTRUCTION; BUILDS A SUPER STRONG WALL SO THAT MC CAN'T BREAK IT AGAIN; HELPS MC WITH DEMOLITION; CRIES FOR THE NEWEST WALL DESTRUCTION; IS THE ONE WHO SAID BRUH TO MAKE MC BREAK THE WALL; KILLS MC; IS THE ONE WHO SAID BRUH BUT ACCIDENTALLY; TRIES TO STOPS THE OTHER FROM FIXING THE WALL; BREAKS THE WALL AGAIN