By the way, here is a list of the glitched spells you can access by messing with your spell list:
Elemental EXCALIBUR
Sprite's spells:
Steel Cap (Damage spell)
Target: Multiple, Chest, Enemy
Strength: 99
Hit: 43
Element: Earth, Moon
MP cost: 43
Elemental MASAMUNE
Girl's spells:
Golden Tiara (Damage spell)
Target: Multiple, Chest, Mana sword, Enemy
Strength: 99
Hit: 47
Element: Air, Water, Moon
MP cost: 47
Raccoon Cap (Status spell)
Target: Ally
Strength: 0
Hit: 47
Element: None
Inflict: Stop, Transform, Poison, Burning
MP cost: 0
Quilted Hood (Stone saber)
Target: Chest, Enemy
Strength: 113
Hit: 192
Inflict: Slow, Freeze, Petrify, Confuse, Stop, Mini, Barrel, Transform, Moogle, Burning, Dead
MP cost: 0
Sprite's spells:
Tiger Cap (Raises hit and evade)
Target: Multiple, Ally
Strength: 216
Hit: 7
MP cost: 76
Circlet (Raises defense)
Target: Multiple, Enemy
Strength: 33
Hit: 244
MP cost: 6
Ruby Armet (Damage spell)
Target: Multiple, Chest, Enemy
Strength: 234
Hit: 213
Element: Earth, Light, Moon
MP cost: 102
Elemental GIGAS SWORD
Girl's spells:
Unicorn Helm (Damage spell, also lowers defense)
Target: Multiple, Enemy
Strength: 225
Hit: 189
Element: Earth, Dark, Light, Mana
MP cost: 64
Dragon Helm (Absorbs HP)
Target: Chest, Enemy
Strength: 58
Hit: 153
Element: Fire, Dark, Light, Mana
MP cost: 8
Duck Helm (Ice saber)
Target: Mana sword, Enemy
Strength: 191
Hit: 126
Inflict: Sleep, Petrify, Confuse, Transform, Moogle
MP cost: 101
Sprite's spells:
Needle Helm (Status healing spell)
Target: Multiple, Enemy
Strength: 24
Hit: 101
MP cost: 0
Cockatrice Cap (Healing spell)
Target: Ally
Strength: 0
Hit: 0
MP cost: 139
Amulet Helm (Damage spell)
Target: Multiple, Mana sword, Enemy
Strength: 8
Hit: 208
Element: Earth
MP cost: 166
Elemental DRAGON BUSTER
Girl's spells:
Griffin Helm (Damage spell)
Target: Chest, Enemy
Strength: 93
Hit: 78
Element: Water, Light, Moon
MP cost: 157
Faerie Crown (Damage spell)
Target: Mana sword, Enemy
Strength: 104
Hit: 133
Element: Fire, Light, Mana
MP cost: 185
No (Fire saber)
Target: Chest, Ally
Strength: 8
Hit: 70
Inflict: Hurt bad, Slow, Petrify, Moogle, Burning, Dead
MP cost: 70
Sprite's spells:
Overalls (Damage spell, also lowers attack)
Target: Chest, Mana sword, Ally
Strength: 255
Hit: 255
Element: Earth, Air, Water, Fire, Dark, Light, Moon, Mana
MP cost: 255
Kung Fu Suit (Damage and status)
Target: Multiple, Chest, Enemy
Strength: 2
Hit: 9
Element: None
Inflict: Hurt, Slow, Confuse, Stop, Mini, Barrel, Transform, Moogle, Poison, Burning, Dead
MP cost: 0
Midge Robe (Damage spell)
Target: Chest, Mana sword, Enemy
Strength: 226
Hit: 0
Element: Air, Light, Moon, Mana
MP cost: 48
Elemental MANA SWORD
Girl's spells:
Chain Vest (Damage spell)
Target: Multiple, Chest, Mana sword, Enemy
Strength: 134
Hit: 159
Element: Air, Water, Light, Moon, Mana
MP cost: 1
Spiky Suit (Status spell)
Target: Chest, Mana sword, Enemy
Strength: 2
Hit: 0
Inflict: Hurt, Hurt bad, Tangled, Sleep, Confuse, Stop, Mini, Barrel, Transform, Moogle, Poison, Burning, Dead
MP cost: 106
Kung Fu Dress (Thunder saber)
Target: Ally
Strength: 4
Hit: 0
Inflict: Hurt, Slow
MP cost: 48
Sprite's spells:
Fancy Overalls (Status spell)
Target: Chest, Enemy
Strength: 146
Hit: 224
Element: Water
Inflict: Stop, Barrel
MP cost: 252
Chest Guard (Analyze)
Target: Chest, Enemy
MP cost: 134
Golden Vest (Status spell)
Target: Ally
Strength: 1
Hit: 243
Inflict: Hurt, Hurt bad, Slow, Stop, Barrel
MP cost: 133
Elemental WATT'S AXE
Girl's spells:
Ruby Vest (Absorbs MP)
Target: Multiple, Enemy
Strength: 228
Hit: 0
Element: None
MP cost: 15
Tiger Suit (Lunar magic)
Target: Ally
Strength: 132
Hit: 159
Element: Earth, Water, Fire, Dark, Light, Moon, Mana
MP cost: 76
Tiger Bikini (Moon saber)
Target: Chest, Mana sword, Ally
Strength: 220
Hit: 128
Inflict: Stop, Mini, Barrel, Transform, Moogle, Poison, Burning, Dead
MP cost: 107
Sprite's spells:
Magical Armor (Lowers evade, raises attack)
Target: Chest, Enemy
Strength: 5
Hit: 255
MP cost: 106
Tortoise Mail (Moon energy)
Target: Chest, Mana sword, Ally
MP cost: 128
Flower Suit (Status spell)
Target: Multiple, Chest, Mana sword, Enemy
Strength: 15
Hit: 255
Inflict: Hurt bad, Slow, Tangled, Sleep, Freeze, Petrify
MP cost: 228
Elemental LODE AXE
Girl's spells:
Battle Suit (Damage spell)
Target: Multiple, Enemy
Strength: 159
Hit: 230
Element: Water
MP cost: 132
Vestguard (Mana Magic 1)
Target: Multiple, Chest, Ally
Strength: 128
Hit: 44
MP cost: 202
Vampire Cape (Revive)
Target: Ally
Strength: 48
Hit: 128
MP cost: 102
Sprite's spells:
Power Suit (Wall)
Target: Chest, Mana sword, Enemy
MP cost: 139
Faerie Cloak (Mana Magic 2)
Target: Multiple, Chest, Mana sword, Enemy
Strength: 225
Hit: 226
MP cost: 228
Nothing (Evil gate)
Target: Multiple, Chest, Enemy
MP cost: 133
Elemental STOUT AXE
Girl's spells:
Faerie's Ring (Damage spell)
Target: Multiple, Ally
Strength: 81
Hit: 133
Element: Earth, Air, Water, Fire, Dark, Light, Moon, Mana
MP cost: 1
Elbow Pad (Dispel magic)
Target: Chest, Ally
Strength: 5
Hit: 141
Element: Water, Fire, Dark, Light, Moon, Mana
MP cost: 0
Power Wrist (Light saber)
Target: Multiple, Enemy
Strength: 1
Hit: 5
Inflict: Slow, Mini, Transform, Dead
MP cost: 44
Sprite's spells:
Cobra Bracelet (Damage spell)
Target: Ally
Strength: 255
Hit: 6
Element: Air, Fire
MP cost: 255
Wolf's Band (Barrier)
Target: Ally
Strength: 0
Hit: 228
MP cost: 95
All other spells will either crash the game or leave your character in his summoning stance until you leave the screen.