There are many skills that each character can learn in Final Fantasy X, and below is a table with all the skills that they can learn. They can learn it by going to the Skill in the Sphere Grid and activating it using an Ability Sphere.
| Skill Name | MP Cost | Description
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| Dark Attack | 5 | Inflicts darkness on an enemy for 3 turns.
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| Silence Attack | 5 | Inflicts silence on an enemy for 3 turns.
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| Sleep Attack | 5 | Puts an enemy to sleep for 3 turns.
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| Delay Attack | 8 | Delays target's next turn.
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| Zombie Attack | 10 | Inflicts zombie status on an enemy.
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| Dark Buster | 10 | Always inflicts darkness on an enemy for 1 turn.
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| Silence Buster | 10 | Always inflicts silence on an enemy for 1 turn.
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| Sleep Buster | 10 | Always infilicts sleep on an enemy for 1 turn.
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| Delay Buster | 18 | Greatly delays target's next turn.
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| Triple Foul | 24 | Inflicts darkness, silence & sleep on an enemy for 3 turns.
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| Extract Power | 1 | Forces target to drop power spheres.
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| Extract Mana | 1 | Forces target to drop mana spheres.
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| Extract Speed | 1 | Forces target to drop speed spheres.
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| Extract Ability | 1 | Forces target to drop ability spheres.
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| Power Break | 8 | Lowers opponent's strength.
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| Magic Break | 8 | Lowers opponent's magic.
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| Armor Break | 12 | Lowers opponent's physical defense.
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| Mental Break | 12 | Lowers opponent's magic defense.
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| Full Break | 99 | Inflicts Power, Magic, Armor & Mental Breaks on an enemy.
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| Mug | 10 | Attack and steal items at the same time.
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| Nab Gil | 30 | Attack and steal gil at the same time.
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| Quick Hit | 36 | Strike quickly with reduced recovery time.
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| Flee | 0 | Aids party's escape from battle.
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| Steal | 0 | Steal items from enemies.
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| Use | 0 | Use special items.
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| Pray | 0 | Restores a small amount of HP to all allies.
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| Cheer | 0 | Raises party's strength and defense.
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| Aim | 0 | Raises party's accuracy.
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| Focus | 0 | Raises party's magic & magic defense.
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| Reflex | 0 | Raises party's evasion.
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| Luck | 0 | Raises party's luck.
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| Jinx | 0 | Lowers opponent's luck.
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| Lancet | 0 | Absorb HP & MP from an enemy.
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| Guard | 0 | Allows character to take damage for an ally.
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| Sentinel | 0 | Allows character to guard allies while in defensive stance.
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| Spare Change | 0 | Attack by throwing gil.
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| Threaten | 12 | Immobilize an enemy with fear; inflicts Stop.
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| Provoke | 4 | Draw an enemy's attack toward you.
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| Entrust | 8 | Contribute your overdrive charge to an ally's gauge.
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| Copycat | 28 | Mimic an ally's previous action.
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| Pilfer Gil | 20 | Steal gil from an enemy.
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| Quick Pockets | 70 | Swiftly use items with reduced recovery time.
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| Doublecast | 0 | Allows character to cast black magic spells twice.
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| Bribe | 0 | Pay an enemy to make it go away.
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