Serpentine Dominion
Bhak honestly wanted to skin Kuro alive as the cat's shadows always prevented it from dodging or even properly retaliating to most of said attacks.
Any of its efforts to take out Eliza who blocked most of its attacks with her barriers, whilst simultaneously buffing her companions and layering it with debuffs were also thwarted by Kuro.
Meteor Showers were blocked by Evan and Milena, the Deadly Sin Siblings dished out deadly attacks with their demonic energy and used multiple combination spells.
Faced with the full might of the 'Anomalies', the Lizard Lord felt the threat of defeat for the first time in its life.
It was just living its life, doing its duties as a Boss Monster, when it randomly began losing power all of a sudden.
The people it was collaborating with to gain freedom from the dungeon could not explain the reason why, and even Bhak itself was confused about why.