1. It is very important to understand the mechanism of fiend challenge and customs clearance requirements. It is important to save the health and mana of team members as much as possible, especially when the blood volume of fiend is extremely low.

2. Understanding the influence of different characters on the fiend challenge can help players to cooperate better in the game.

3. It is very important to be familiar with the skills and equipment of the characters challenged by the fiend. The reasonable collocation of equipment can also improve the output efficiency and defense ability of the character, and help the player to better cope with the demon challenge.

4. Before entering the fiend battle, players are advised to design a complete tactical plan that conforms to the composition of team members. You can learn from some excellent fiend team raiders videos.