Ultimately, the Flayer represents the industrialization of the wild. They are the interface between the primal rage of nature and the calculated greed of civilization. To "flay" is to strip the myth from the monster, leaving only the raw materials behind. It is a profession defined by the knowledge that for all the monster’s fury and fire, given the right angle and the right pressure, it is all just meat waiting to be harvested.
The flagship monster, Arkveld (the White Wraith), provides pieces with the Flayer skill as early as Low Rank.
The skill is designed to accelerate the process of weakening a monster’s hide. In Monster Hunter Wilds , attacking a specific body part eventually creates a "Wound"—a glowing, vulnerable spot that grants increased damage and allows for powerful Focus Strikes.
This ancient-tech themed armor often features Flayer points in its High Rank or Master Rank iterations.