China Naming Network - Eight-character Q&A - Pokemon Battle Rules (Fourth Generation)
Pokemon Battle Rules (Fourth Generation)
Specific reference
/share/285141802/4908371062
The following is the answer to the question
The fourth generation is banned. . .
Here to educate the poster: Class B beasts are restricted. It's not that it can't be used, it's that you can only use one.
The hippopotamus is indeed quite powerful, in my humble opinion. . Human shield, dedicated to blood consumption. The racial value is also quite high.
Supplement: The above URL may require an account
For specific information, you can search for "Pocket Bar PBO Rules" which is the fourth era rules
ROCKX4 Original
Hope the poster will adopt it