Thalassia's Revenge is a melee weapon that was originally obtained by completing the "voyage" around the Wushanko Isles eight times in the Beyond the Arc promotion from Treasure Hunter. It costs 2,000,000 coins to retrieve the item from Diango. It can be purchased from Boni on Waiko for 25,000 chimes and 50 taijitu. If lost or destroyed, a replacement can be purchased from Diango for 2,000,000 coins.