Invisira is a level 6 White Magic spell. When used, it increases the Evasion of all allies by 40 points. It is an incredibly vital spell to have in the White Mage's arsenal the moment it becomes available, especially when in boss encounters, causing the enemy's physical attacks to miss targeted party members. However, if a player did not select a White Mage at the start of the game, the player will have to rely on a Red Wizard to have access to spell during the game's latter half.
In the GBA and 20th Anniversary releases it costs 20 MP to cast. It can be cast from the White Robe for free.