In Fantasy Westward Journey, how to calculate the difficulty of different levels of fantasy team formation can be referred to as follows:
Difficulty is determined by the average level of the players. It should be noted that if the average level is lower than level 40, you cannot receive the mission. Moreover, if the average level is low, the rewards will be low. There is no benefit to using a large player with a small player to catch ghosts. Unless the reward is obtained after 10 times, the team formation method is as shown in the figure below: