Before the enhancement of his bloodline and swordsmanship, Arthur, who possessed the "Mark of Thunder," could, in a sense, face 'Ascend Steppers'.
Moreover, with the trait of the "Mark of Thunder," as long as he wasn't instantly killed, Arthur could fight and, if not, escape.
However, the flickering of "Death Intuition" was signaling to Arthur that death was still a possibility.
That is to say, facing those tentacles, Arthur could very likely be killed instantaneously.
Therefore, the already cautious Arthur became even more careful.
Even while monitoring, he was extremely cautious.
But this time was different.
In the instant the abnormality occurred, Arthur's "Death Intuition" did not flicker.
Not just the "Death Intuition."
There was also...
"Spirituality"!
You must know, during the previous flickering of "Death Intuition," Arthur's "Spirituality" was almost boiling, making him feel uncomfortable.