Two Empresses

Hearing his question, she gave him a gentle smile, saying "Nah, I was checking what grade mystic egg is this..."

"Grade for the mystic eggs?" He was puzzled as Teacher Milena hadn't told them about the grades of these objects that they get after killing lord beasts.

"Yeah...but it's a secret within the great clans... Only a few higher-level experts know about it... The grade depends on how alive the mystic egg is and its temperature as well as the aura it's giving...

The grade goes by Normal, Epic, Legendary, and Mythic... This egg is at least Epic grade as it's warm and pulsating when we touch the surface... but it could be also a legendary one as it has a terrifying aura sealed within... 

However, there is no reason for a lord beast of the purple stage to drop a Legendary grade mystic egg..." She looked puzzled as her fingers felt the surface of the obsidian egg...