Important Note: Armaggedon Dragon Ranrok is the end of the world final boss of Hogwarts Legacy in the chamber of the final memory, where the player can see the world end, you can ONLY get the perfect ending IF you stop the meteor in the very last minutes, if not you will get the normal ending, the god dementor protecting Hogwarts dies and you get the NORMAL ending because you force the Auror's sacrifices, stopping the meteor before the world end vision, gives you the master / perfect ending.