First, the shack needs open space, and then the grade should not be too low. Generally speaking, after defeating the three mazes in spring, summer and autumn, the level is almost the same. If you feed me, 80 gold coins of jiaozi powder bought at the grocery store is the most affordable. I usually use it to catch monsters. Very cheap, you can buy dozens of bags at a time, so there is no shortage, and it is difficult to catch them later.