First tier - The weakest beasts most of them are rodents.
2nd tier - They are stronger than the first tier beasts and consist of beasts like insects that live in packs like ants and bees.
3rd tier - They are beasts that roam alone and are mostly like tigers, horses and many other wild animals.
4th tier - They are beasts that move in packs and have intelligence like wolves and hyenas.
5th tier - They are giant beasts like the apes, blue whale and elephants.
6th tier - They are the mythological creatures like Griffin and Dragon.