This odd liquid gives off a bracing odor that tickles the nose and stings the eyes. In the right amounts, it can melt metal.
Mystery Fluid is an item that teaches Quistis the Blue Magic spell, Acid. It can be dropped or stolen from Gayla (any level) or 1 can be refined from 1 Gayla card. One Mystery Fluid can be refined into 10 Meltdown spells via ST Mag-RF.
A putrid liquid whose origins are better left a mystery.
Strange Liquid is a loot that is required in making the Ama-no-Murakumo, Serpent Staff, Longbarrel, Rocket Punch, Two of Clubs, Enavia Chronicles, Tome of Ending, and Hanya Mask in the Bazaar. It sells for 800 gil. It can be obtained from the "Ordalia Airships Grounded", "Green King of Cinquleur", and "Airship S.O.S!" missions.