Critical ability

SOS Abilities are a set of recurring abilities in the series. First appearing as SOS Shell in Final Fantasy V, SOS abilities have grown to include just about all of the positive status effects, and are only active so long as the user is in Critical status. The SOS ability cannot be dispelled while it is active, and will automatically reapply itself should the character be KO'ed and revived back into Critical. The moment the user is restored to above their Critical HP limit, the ability will automatically wear off. These were normally found on pieces of equipment, normally Accessories, though they became separate abilities later on the series around Final Fantasy X. The following is a list of SOS abilities that have appeared throughout the series:


 * SOS Shell (aka Magic Shell) - Automatically puts the user in Shell status.
 * SOS Protect - Automatically puts the user in Protect status.
 * SOS Haste/Last Haste - Automatically puts the user in Haste status.
 * SOS Wall - Automatically puts the user in Protect and Shell status
 * SOS Reflect - Automatically puts the user in Reflect status
 * SOS Regen - Automatically puts the user in Regen status
 * SOS NulBlaze - Automatically puts the user in NulBlaze status
 * SOS NulFroze - Automatically puts the user in NulFrost status
 * SOS NulShock - Automatically puts the user in NulShock status
 * SOS NulTide - Automatically puts the user in NulTide status
 * SOS Overdrive - Increases Overdrive gauge gain
 * SOS Spellspring - Reduces cost of spells and techniques to 0.
 * SOS ???? - As long as the user is in Critical, all healing items and spells heal for 9999 and all damage attacks, spells, and items will deal 9999 per hit.

While the following aren't named "SOS", they still follow the same format:


 * Adrenaline - Doubles attack
 * Last Stand - Doubles defense
 * Spellbreaker - Doubles magic
 * Chivalry - Increases Attack and Magic
 * Gallantry - Increases Defense and Magic Defense
 * Restore HP/Critical: Recover HP - Regains half of Max HP/HP if character survives an attack while in Critical
 * Critical: Recover MP - Regains MP
 * Critical: Quick - Can attack quicker
 * Last Berserk - Automatically puts the user in Berserk status
 * '''Critical: Vanish - Automatically puts the user in Vanish status
 * '''Critical: Evasion - Increases Evasion.

Final Fantasy IV
Adrenaline and Last Stand appear in the DS version of the game only as Augments. Adrenaline is received through Cid after modifying the Falcon and by giving him 2 Augments. Last Stand is received at the Tower of Zot, and if Tellah had been given 1 or more Augments.

Final Fantasy V
Magic Shell is a Level 1 Mystic Knight ability that requires 10 AP to master.

Final Fantasy IX
Restore HP is an ability that can be learned by the melee characters, and is taught through the Brave Suit, Promist Ring, Platinum Helm, Grand Armor, and Minerva's Plate.