Increase physical damage against Avians by 50%
A bow made from platinum. Platinum is quite heavy, making it an unlikely pick to be used for bows, which require speed and precision. But after strenuous efforts of craftsmen, they finally were able to make the platinum lightweight, thus making it accommodating, even for bows. The bowstring is dusted with fine particles of platinum for fortification and resiliency. Of course, this means that the person will need to be strong enough to draw the bowstring.