Quistis’ Limit Break works very similar to the way Enemy Skill Materia worked in Final Fantasy VII. Quistis can use certain items to learn new Blue Magic attacks.

The full list of items that you can obtain and the Blue Magic Limit Break attack that Quistis will learn is included below.

Blue Magic Items

Item	Blue Magic	Description
-	Laser Eye	Regular damage to a single enemy.
Spider Web	Ultra Wave	Regular damage to all enemies.
Coral Fragment	Electrocute	Thunder damage to all enemies.
Curse Spike	Lv? Death	Casts Death on all enemies.
Black Hole	Degenerator	Removes an enemy from the battle.
Water Crystal	Aqua Breath	Water damage to all enemies.
Missile	Micro Missile	Gravity damage to all enemies.
Mystery Fluid	Acid	Poison damage to one enemy (plus potential status effects).
Running Fire	Gatling Gun	Regular damage to all enemies.
Inferno Fang	Fire Breath	Fire damage to all enemies.
Malboro Tentacles	Bad Breath	Casts various status effects on all enemies.
Whisper	White Wind	Restores HP to all party members.
Laser Cannon	Homing Laser	High regular damage to one enemy.
Barrier	Mighty Guard	Casts Shell, Protect, Regen, Haste, Float, or Aura randomly on party members.
Power Generator	Ray Bomb	Regular damage to all enemies.
Dark Matter	Shockwave Pulsar	(Griever’s Attack) Regular damage to all enemies - can exceed 9,999 damage.