People in Harry Potter suddenly become invincible

Luochen traveled across time, came to the world of Harry Potter, and got the wizard supreme system. Although the system is relatively doggy, it is called a ruthless system if it is turned on and hung up. Leveling up is like drinking water, destroying Horcruxes in a few days, crushing Snape in half a year, and rivaling Dumbledore in a year.
When everyone found out that Voldemort had become a woman, and Lockhart had become a big devil, Hogsmeade was not the only one, and the Chinese language was popular all over the world...
Luo Chen has become a god, overlooking all living beings!
Smile lightly: All life in the world is in my palm. Who is more powerful than me in the world?