"Boosts Defense & Magic Defense, & protects against Stone." - Flavor Text The Gem of Fluidity (カタマンナ石 Katamanna Ishi) is an that can be equipped by all party members. Equipping this accessory increases both Defense and Magic Defense by 10, and also protects against Stone. In both versions of Skies of Arcadia, the Gem of Fluidity is an item that has a 2% chance of being dropped by the Polraxis enemies found in Rixis. It can also be found within a treasure chest in Maramba. Additionally, in the remake, one can also be obtained after feeding 4 Moonfish to Maria’s pet Hamachou.