From the look of it, the Black Dragon doesn't have self-consciousness. Driven by its sheer instinct, the creature ran rampant at such insane speed despite its humongous size.
Ggraaaahhhh
The beast let out a deafening roar to the top of its lungs. The air in the surrounding area was pushed away, decimating the lesser mutated beasts.
The sky darkened, the air was thick with the stench of death.
Meanwhile, Arthur calmly assesses the situation while probing its weakness from above.
"What should we do, master?" asked Xiaoqing.
Arthur was silent for a moment, building his plan to defeat such monstrosity.
Normally, he would just go all out and drown himself in the fight. However, this Black Dragon was truly something else.
"Appraisal!"
[Your current cultivation is too low to appraise the beast.]
"Hmm, which means, this dragon's strength is well over Legendary Rank?"