"A scale of a Thryllak, an animal even deadlier than the Throkryn. Raises Attack Power." - Flavor Text
In both versions of Skies of Arcadia, a Thryllak's Scale has a 2% chance of being dropped by a Thryllak in the airspace around the Valuan continent. It may also be purchased from Roscoe's Weapons on Sailor's Island at a cost of 2300 Gold. It has a resale value of 1150 Gold.