Hi - Ether The Hi - Ether , also known as Dry Ether or Ether2 , is an item in the " Final Fantasy " series that restores MP . It is stronger than a regular Ether . Appearance . " Final Fantasy " . The Dry Ether appears in the " " , " 20th Anniversary " and iOS versions . The first one available is a rare drop by the Lich . Others can be found in the bonus dungeon s . " Final Fantasy IV " . " Final Fantasy IV - Interlude - " . Dry Ethers restore 150 MP to one target . They can be dropped from the Tiny Mage enemy , as well as various other enemies , mainly the Mage - type monsters . They can also be bought for 50 , 000 gil in the final chapter in the Depths or " Lunar Whale " . " Final Fantasy V " . Although not usable by normal means , Triple Ether , known as Ether Dry in the Anthologies release , is a Mix result by mixing a Hi - Potion with a Turtle Shell . It restores MP equal to three Ethers . " Before Crisis - Final Fantasy VII - " . Hi - Ethers restore 200 MP . They can be bought for 500 Rank Points . " Final Fantasy XI " . Hi - Ethers , originally titled Ether2 , are obtained a variety of different ways , such as crafted with the appropriate skill in Alchemy , purchase from an NPC vendor , or as rewards for special events like Assault or Burning Circle fights . There are four different varieties of Hi - Ethers : Hi - Ether , Hi - Ether + 1 , Hi - Ether + 2 , and Hi - Ether + 3 . The plus amount signifies a higher quality , with + 3 being the best version , though other Ethers exist that restore more MP . There also exists a backpack called a " Hi - Ether Tank " that dispenses a Hi - Ether on demand ( up to 20 times per tank ) , found sometimes from Assault . " Final Fantasy XII " . The amount of MP Hi - Ether restores depends on the accessed Ether Lores , but after all Lores have been bought a Hi - Ether heals 250 MP . The Hi - Ether is not purchasable from shop s , rather , it can only be acquired via treasure chests or synthesizing loot from the Bazaar . The ingredients of Hi - Ethers are : Foul Liquid x2 , Slime Oil x1 , Unpurified Ether x2 . It is known as " Flask of Viscous Liquid " in the Bazaar and costs 12 , 000 gil . The pack can be created repeatedly , however , due to a bug in game coding , Slime Oil is actually an extremely rare item ; it was intended to be dropped by the flan genus of monsters , but because none of the regular flans actually do so , Slime Oil can only be obtained from the Orthros and the footracing minigame . Hi - Ethers can be farmed at the Feddik River area of the Cerobi Steppe . All of the ten chests in the area spawn 50 % of the time , with 50 % chance of containing items , and , 50 % to give a Hi - Ether if the treasure is items , without equipping the Diamond Armlet . " Final Fantasy XIV " . Hi - Ether , like all other items , are subject to a cooldown timer shared between all items . " Final Fantasy Tactics " . Hi - Ether can be used as an ability for the Chemist job class , requiring 400 JP to master . Hi - Ethers restore 50 MP to a unit and costs 600 gil to buy . Hi - Ether can be found with the Treasure Hunter ability at the Eagrose Castle , Fort Besselat South Wall , Limberry Castle Undercroft and Mullonde Cathedral . " Final Fantasy Type - 0 " . Hi - Ethers can be bought for 10 , 000 G in the , and also found in the Hunting Caves , Horne , and the Star Chamber . It restores 5 AP . " Bravely Default " . Dry Ether is a compound ability usable by compounding an Ether and Turbo Ether . It restores 500 MP to a target .