Shadow mantis.
The twelve creatures that had materialized on the burning plain were all classified as 'creatures that one should never face'. And that danger level increased to 'rest in peace if you encounter a group of them'.
They were rare creatures, mainly found in the forbidden bamboo forest of the eastern empire, and were absolute hunters that could hunt down creatures twice as strong as them in an advantageous confrontation.
The black mantis of death. It was a nickname the adventurers of the east gave them, and certainly, these creatures were worthy of that name even from Lucy's perspective.
One would face all the difficulties in the world if they encountered one of them in a forest area, but at least these fire plains could have been a little advantageous for them.
But, he was facing not one or two but twelve of them, which was ultimately disadvantageous for any of the adventurers.