First of all, we need to understand the special functions of food barrier cards. Each food barrier card will describe "extra attraction to monsters", which means that when using food barrier cards, you can get a monster fragment randomly every hour besides gaining experience, and the type of monster fragment is basically one of those described on food barrier cards, so there is actually a small chance to get SSR fragments ~

If you are European, you can directly use the food magic card. After all, you may get SSR fragments. But if your luck is always dark, it is recommended to open the following correct use posture-

That is to combine the food barrier card with other common barrier cards. There is a great chance that you will get advanced magic cards such as Taigu, Betta and Umbrella House. If you are lucky, you can also synthesize a high-star ordinary magic card. Why don't you try ~