Crystal Mail Crystal Mail , also known as Crystal Armor , is a recurring armor in the series . It is a high - ranked heavy armor that provides outstanding defenses , and may sometimes provide status resistances in addition to other stat bonuses . Appearances . " Final Fantasy " . Crystal Mail is a high - ranked armor exclusive to the Game Boy Advance and later versions that provides 44 Defense , - 10 Evasion , 10 Weight , + 3 Intelligence , and resistance to Blind , Silence , and Petrify . It can be found in the Whisperwind Cove . " Final Fantasy III " . Crystal Mail is a high - ranked armor that can be bought for 50 , 000 gil ( 65 , 000 in the NES version ) at Eureka or found at Ancients ' Maze and Crystal Tower . It can only be equipped by the Onion Knight , Freelancer , Warrior , Red Mage , Knight , Dragoon , Viking , and Dark Knight classes . In the NES version , it provides 28 Defense , 18 Magic Defense , and 20 % Evade . In the 3D versions , it provides 55 Defense , and 24 Magic Defense . " Final Fantasy IV " . Crystal Mail is a high - ranked armor , originally the best armor for Cecil outside of the Adamant Armor , and provides 25 Defense , 10 Magic Defense , - 10 Evasion , 6 Magic Evasion , + 3 Spirit , and resistance to Darkness , Silence , Mini , Toad , Pig , Berserk , and against attacks from Undead enemies . It can be found in the Lunar Subterrane . In the 3D remakes , it now provides 25 Defense , 10 Magic Defense , 6 Magic Evasion , + 3 Spirit , and resistance to Darkness , Silence , Mini , Toad , Pig , and Berserk . It can still only be equipped by Paladin Cecil and is still found at Lunar Subterrane . " Final Fantasy V " . Crystal Armor is a high - ranked armor , initially the strongest armor only bested by the Genji Armor , and provides 20 Defense , 2 Magic Defense , and 8 Weight . It can be bought for 12 , 000 gil at Phantom Village or Great Sea Trench , dropped from Sekhmet or Crystal Dragon , or found at Pyramid of Moore . " Final Fantasy VI " . Crystal Mail is a high - ranked heavy armor that provides 72 Defense and 49 Magic Defense . It can be bought for 17 , 000 gil at Maranda in the World of Ruin , found at Darill ' s Tomb , or Metamorphed from Platinum Dragon , Ice Dragon , Storm Dragon , Earth Dragon , Gold Dragon , Skull Dragon , Blue Dragon , Red Dragon , and Proto Armor . It can be equipped by Terra , Locke , Edgar , Cyan , Celes , and Setzer . " Final Fantasy Tactics " . Crystal Armor is a high - ranked armor that provides + 110 HP . It can be bought for 19 , 000 gil at an Outfitter after the Battle of Fort Besselat during Chapter 4 , or found as rare treasure at Fort Besselat Sluice . " Bravely Default " . Crystal Mail is the strongest heavy armor providing 50 Defense and 12 Magic Defense . " Final Fantasy Dimensions " . Crystal Mail is a high - ranked armor that provides 26 Defense and 5 Magic Defense . " Dissidia Final Fantasy " . Crystal Armor is a level 65 heavy armor that provides + 2064 HP and is 1 / 3rd of the " Blessed Crystal " set . It can be obtained from the shop by trading 15 , 570 gil , Survival Vest , Crystal x2 , and Shadow Bone x3 . " Dissidia 012 Final Fantasy " . Crystal Armor returns as a level 30 heavy armor that provides + 2041 HP , - 38 Bravery , and is 1 / 3rd of the " Blessed Crystal " set . It can be obtained from the shop by trading 47 , 900 gil , Heavy Armor , Crystal x2 , and Warlock ' s Dream x3 .