After entering the Endless Abyss for a long time and personally killing many mutated beasts, Chu Nan had actually long discovered that although these mutated beasts in the Endless Abyss were called mutated beasts, it was only to distinguish them from ordinary beasts and ferocious beasts.
The greatest difference between them and ordinary beasts and ferocious beasts was that these mutated beasts were more suitable to the special environment here. Most of them could casually mobilize spatial energy to attack with powerful might.
In fact, many of them were simply ordinary wild beasts or even ferocious beasts mutated outside. In most cases, using the classification criteria in the "Pan Milky Way Ferocious Beast Encyclopedia" to classify them was not much different.
If this mutated beast that let out a shocking roar was on a ferocious beast, it would undoubtedly be evaluated as the highest S-rank!
