Going a few hours back in time before Danzel was forced to activate the enchantment of his shield...
The dark mist manifest by Skull Claw came right at the edge of the forest, where in front were the castle walls with all the patrolling soldiers.
The rogue named Kenn stared at that exact dark mist with a frown.
"Why is he using the dark mist? The magic caster patrolling the walls should be able to notice it with their mana senses when outside..."
After all, the dark mist was purely a visual effect. Mana-wise, it was just a cluster of mana put together.
Those inside in the mist who tried to identify someone by seeing their mana would in the end be blinded by all dark mist that is made out of dark mana.
It was essential a smoke bomb, but 10 times better as the dark mana absorbed light itself to some degree.
Being inside of it, one would be at the complete mercy of the caster's mist.