Luck

Luck is the statistic that determines a character's chance of being inflicted by a status inflicting problem attached to an ability used against you, such as Sleep and Stun. However, it does not increase your own chance of inflicting said status effects onto opponents, contrary to common belief. Having a luck rating of 40 or higher provides immunity to Poison, Venom, Haunt, Death Curse, the target's HP being instantly reduced to 1, and being forced out of battle (Like the Djinni Gale's attack would otherwise have a chance of doing).

Ways to increase Luck
Unlike your other Statistics, Luck does not increase as you level up. Luck cannot be temporarily changed during battle, either. The only ways you can change an Adept's Luck are:
 * Using Lucky Pepper on the Adept.
 * Setting certain Djinn to an Adept.
 * Changing your Character class to one with a higher Luck rating.
 * Equipping luck-boosting equipment.