The two monsters that fighting is Earth Leopards, earth leopards are rare monsters that one rarely come across and they are also one of the most expensive Class 9 strain monster in westblood.
The earth leopards are one of the most balanced monsters out there, They had inherent speed and agility that big cat monsters family (Felidae) have and it is earth elemental monster which provides them very good defense.
The reason they are so expensive because they imprint their physical quality they are born with and earth ability they have inhuman after bonding, not only that if one reached Colonol stage which is limit of monster strain, there is 70% chance that this monster activates inherent strain of high-level monster or mutate.