Leon saw this and sighed deeply. He could only enter the room and his expression twisted when he sensed the black element rushing into his body.
The black element was a volatile element, this was something that many people had known in their entire life. Because the black element itself was commonly used in various matters, especially because of it corrosive nature and many other things. Even the application in various magic spells were also quite vicious and cruel.
A mage would learn how to use the element to their advantage.
But this didn't mean that their entire body would be made of the element itself. They had to learn how to integrate the element into their own body and honed their strength.
Leon gritted his teeth and sat cross legged to start meditating.