Rank of the cosmic beast

Similarly to cultivation realm of humans

Iron rank

Bronze rank

Silver rank

Gold rank

Platinum rank

Diamond rank

Obsidian rank

Legend rank

Epic rank

Mythical rank

P/s: cosmic beast more powerful than human in same ranks I.e. it would take 4 cultivators of the bronze stage to fight a single bronze rank cosmic beast. But there are always exception as some geniuses with big background has high-quality martial arts and cultivation techniques that is why they can fight cosmic beasts of the same rank and even kill it easily and go against cultivator higher than their rank

With the help of Imperial monster cultivator

Monster rank up easily and on very rare occasion can even mutate.

A double mutated rank monster can fight 2 ranks above him without much disadvantage.

The cosmic beast can go through mutations in wilds but it takes decades and some rare lucky encounters.