Bat Wing

Bat Wing (BW) is a reagent that is in use on Pagan, harvested from -as the name already says- bats, by cutting off their wings.

Pagan
On Pagan, Bat Wing was used in the magic scool of Thaumaturgy for the magical effect of affecting or creating life/creatures. Interestingly enough, despite Mythran selling the reagent, no live bats were ever seen in the entirety of the Avatar's stay in the world.