Wyvern Gale
Analysis
A 2-sided blade designed to utilize "downforce". The blade contains many holes and hollows which are angled and shaped to ventilate air upwards from underneath. When the air is sent upwards, it pushes down against the blade, creating "downforce", where the blade becomes functionally heavier and more stable. By increasing its stability, the blade extends its stamina and longevity.
Value
While the gimmick of Wyvern Gale is unique, it unfortunately isn't enough to make much of an effect. It does generate "downforce", but the effect isn't strong enough to enhance Wyvern Gale's performance beyond what other blades are naturally capable of. As a result, Wyvern Gale is a low-priority part.