FFT Mystic Arts (陰陽術, Onmyō Jutsu?), also known as Yin Yang Magic, is a command ability from Final Fantasy Tactics used by the Mystic. Mystic Arts consists of negative status effects, as well as one or two positive buffs. It is one of the command abilities that can be used with the Arithmetician's Arithmeticks ability.

Beowulf Cadmus and his rival, Aliste Rosenheim, have a similar skill, known as Spellblade. It uses essentially all the same spells, but are far more effective and require a sword to be performed.

The formula for success rate of Mystic Arts are as follows:

(Magick Attack + PWR) x (Faith/100) x (Target Faith/100)
Original Name WoL Name Description MP Cost Range Effect Speed JP Needed
Blind Umbra Rob targets of sight, reducing the success rate of their physical attacks.
Can be Reflected. Arithmeticks.
Effect: Blind.
Quote: "All light fall into darkness! Bound darkness!"
4 4 2 50 100
Spell Absorb Empowerment Absorb MP from the target.
Quote: "Guiding light, shed magic power from above! Spell Absorb!"
2 4 1 50 200
Life Drain Invigoration Absorb HP from the target.
Quote: "Lost energy...raise the heartrate! Life Drain!"
16 4 1 50 350
Pray Faith Belief Fill the target's soul with a zealous fervor.
Can be Reflected. Arithmeticks.
Effect: Faith.
Quote: "God is watching...have faith! Pray Faith!"
6 4 1 25 400
Doubt Faith Disbelief Drain the target's soul of piety.
Can be Reflected. Arithmeticks.
Effect: Atheist.
Quote: "Seek the true tone to form our will...Doubt Faith!"
6 4 1 25 400
Zombie Corruption Transform the target into one of the walking dead.
Can be Reflected. Arithmeticks.
Effect: Undead.
Quote: "Great tree of life, inject rotten extract! Zombie!"
20 4 1 20 300
Silence Song Quiescence Rob targets of speech, rendering them unable to cast magicks.
Can be Reflected. Arithmeticks.
Effect: Silence.
Quote: "Conjurors, seek truth in silence... Silence Song!"
16 4 2 34 170
Blind Rage Fervor Impart a thirst for destruction, rendering the target mad for blood.
Can be Reflected. Arithmeticks.
Effect: Berserk.
Quote: "Reason with confusion, judge with recklessness...Brave Insanity!"
16 4 1 20 400
Foxbird Trepidation Reduce the target's Bravery.
Can be Reflected. Arithmeticks.
Quote: "Cowards, weak, those rushing to die! Foxbird!"
20 4 1 25 200
Confusion Song Delirium Cause the target to become delirious and act irrationally.
Can be Reflected. Arithmeticks.
Effect: Confuse.
Quote: "Smash all who hunger for destruction... Confusion Song!"
20 4 1 20 400
Dispel Magic Harmony Neutralize beneficial status effects on the target.
Removes: Float, Reraise, Invisible, Regen, Protect, Shell, Haste, Faith, Reflect.
Quote: "Illusions, lies, to heaven! Dispel Magic!"
34 4 1 34 800
Paralyze Hesitation Render the target incapable of action.
Can be Reflected. Arithmeticks.
Effect: Disable.
Quote: "Mindless, spiritless, hear the immutable beat... Paralyze!"
10 4 2 20 100
Sleep Repose Put the target into a deep slumber.
Can be Reflected. Arithmeticks.
Effect: Sleep.
Quote: "Lose conscious, wash away into the silent sea...Sleep!"
24 4 2 17 350
Petrify Induration Turn the target's body into stone.
Can be Reflected. Arithmeticks.
Effect: Stone.
Quote: "Suffering spirits, to eternity! Break Seal!"
16 4 1 10 580/600