Boost as seen in Final Fantasy VIII.
Boost (おうえん, Ouen) is a recurring ability in the series that often increases the damage dealt by the next attack. It is commonly associated with the Monk class or summoning.
Appearances
Final Fantasy III
Used by Black Belts, boosting once increases damage dealt, while using it twice increases damage further. Using it three times will damage the Black Belt by 50% of their HP and release all the stored energy.
Final Fantasy VIII
Guardian Forces' attacks are enhanced by Boost via timed button presses. The GFs Diablos, Carbuncle, Cerberus, and Cactuar do not have Boost, since their effects either do not deal damage, or do a set amount of damage. A character's compatibility with a GF determines how much they can boost it before the animation ends. Removing Boost with Amnesia Greens is not recommended, as there is no way to regain the Boost ability.
During the summon animation, the player can tap the 
button to boost the GF to increase damage; however, it has a drawback - if the player fails to boost the GF, it may end up dealing less damage than it would have when not boosted at all. The damage varies between 75% and 250% of the normal damage. The percentage rises when the player taps the button correctly, but drops to 75% if the player presses the button during a time a red cross appears over the cursor. GFs with longer summon animations, such as Eden, are the easiest to boost.
Final Fantasy IX
Boost is a support ability that enhances Garnet and Eiko's summons, showing the full summon animation each time an eidolon is summoned. Garnet can learn it for 190 AP, while Eiko can learn it for 150 AP, both from the Pumice Piece.
Final Fantasy X
Boost is a command available to the aeons if the player presses right on the command menu. It allows the aeon's Overdrive gauge to fill up more quickly, at the cost of the aeon taking more damage. It is the opposite of Shield.
Final Fantasy XI
Boost is used by Monks. It raises the next attack for approximately three minutes and is stackable. It works well in conjunction with Chi Blast and to increase enmity. Boost can be enhanced by wearing Temple Gloves.
Final Fantasy Tactics Advance
Boost is usable by Archers, learned through the Longbow for 100 AP. It increases the power of their next attack. The Templar's Cheer learned through the Partisan for 100 AP is identical.
Final Fantasy Tactics A2: Grimoire of the Rift
The job classes Archer and Templar are carried forward meaning that Archers still have the ability Boost learned through the Longbow for 100 AP. Templar's now use an ability called Discipline learned from the Partisan for 150 AP. Both double the damage or effect of the next attack.
Final Fantasy: The 4 Heroes of Light
The Boost command is equipped to every playable character by default, and lets the user conserve their Action Points without taking a turn. They take less damage from enemy attacks on their Boost turn, making the Boost command comparable to the Defend command in many other Final Fantasy titles.
Gallery
Template:Gallery
Template:Abilities Template:FFVIII Abilities Template:FFIX Abilities Template:FFX Abilities