"Cascading Mist!"
Bloodied Grimm Monster shouted, and next moment, in the steely black veins, mist-like energy started to flow, and with it, its strength increased immensely.
It had been more than an hour since we were fighting, and in this hour, I had made this Grimm Monster completely bloodied. Except for the part that is covered in the steely black veins, everything had turned bloody.
In the past ten minutes, I've come close to killing it and especially the attack I did on it a few seconds ago where I left the gaping wound, this had probably scared the Grimm Monster so much that it had used its Mystic Method immediately.
If I had wanted to, I would have been able to kill this Grimm Monster hour ago with my Mystic Skill; it is powerful enough that it can kill any Grimm Monster with just one hit, but I did not.