In Final Fantasy II, there is no multiples of particular spells. Rather a single spell is purchased or found as a scroll. As a party member uses a spell, points are given towards that spell. When a spell reaches 100 Pt's, it levels up, thus creating a stronger spell. The spells in Final Fantasy II are divided, Like Final Fantasy, into Black and White spells.
They are:

NAME	COST	DESCRIPTION	LEVEL UP
Barrier	8000	Protection from special attacks	Accuracy and protection increase
Heal	800	Cures temporary status effects	Cure more ailments & higher success rate
Cure	200	Restores hp to target	more hp is restored
Blink	400	Increases evasion	Higher chance of success
Dispel	3000	Removes magical effects on target	Higher chance of success
Esuna	800	Removes permanent status ailments	Higher success, and different effects cured
Anti	1500	Reduces targets mp	Higher success rate, & more mp removed
Peep	800	Cause target to run in terror	Higher chance of success
Fog	3000	Causes target to forget what they are doing	Higher chance of success
Holy	20000	Strikes enemy with divine judgement	Higher chance of success, and more damage
Life	1500	Revive fallen members	Revived with higher hp
Mini	3000	Causes target to shrink	Higher chance of success
Shell	400	Raises magic defense	Higher chance of success, and increased defense
Safe	400	Raises physical defense	Higher success, and greater physical defense
Mute	800	Prevents spell casting	Higher chance of success
Slow	3000	Slows time between attacks	Higher success, and more time lost
Change	8000	Switches casters hp/mp with targets	Higher chance of success
Ultima	-	Unleashes wrath of the ancient ones	Higher damage caused
Wall	8000	Raises defense against Black Magic	Higher success, and increased defense
X-Zone	1500	Warps back one floor. and targets out of battles	Higher chance of success in battle
Exit	1500	Warp out of dungeons. Warps targets out of fights	Higher chance of success in battles

NAME	COST	DESCRIPTION	LEVEL UP
Aura	-	Increases attacks vs certain enemies	Higher success, and increased attick
Berserk	1500	Boosts targets attack temporarily	Higher success, and increased boost in power
Blind	-	Lowers targets accuracy	Higher chance of success, greater decrease in accuracy
Bolt	400	Lightning damage	More damage caused
Break	-	Turns target to stone	Higher chance of success
Curse	-	Lowers success of various actions	higher success, and higher decrease in abilities
Death	10000	Instant death for targets	Higher chance of success
Drain	-	Ttansfers hp from target to caster	Higher amount of hp taken from target
Fire	400	Fire damage	Higher amount of damage
Flare	40000	Non elemental, explosive attack	Higher amount of damage caused
Haste	20000	Increase time between attacks	Higher success, and faster time
Ice	400	Ice damage	Higher amount of damage caused
Charm	-	Confuses target into attacking allies	Higher chance of success
Aspil	-	Transfers mp from target to caster	Higher chance of success, and higher amount of mp transfered
Aero	-	Poison damage	Higher chance of causing poison status, and higher damage
Sleep	-	Causes target to fall asleep
Stop	-	Stops targets actions	higher chance of success
Stone	-	Inflicts Paralysis on target	Higher chance of success
Toad	-	Transforms enemies into frogs	Higher chance of success