In the cold and lonely mountain in the north, Roy spent a long time obtaining information about this world.
Sharpening the knife would not delay the work of cutting wood. Roy's harvest was quite large. He completely understood the situation of this world and knew why Mephisto and the others, such a powerful demon force, had failed time and time again in this world.
In addition to the Soulstones that originated from the Worldstone and were made by the first Church of Horadrim, there was another reason that couldn't be ignored—the Worldstone.