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de:Dia III

Lowers an enemy's defense and gradually deals Light elemental damage.


Spell cost: 45 MP
Spell element: Light
Magic skill: Enfeebling

Merit Info:

  • Lasts 30 seconds upon first unlocking.
  • Each additional Merit increases the duration of Defense Down by 30 seconds.


Casting Time: 2 second
Recast Time: 7 seconds

How to Obtain

Obtained: Merit point group 2

Other Information

Dia III initially lasts 30 seconds. Each upgrade increases the duration of the spell by 30 seconds.

Dia / Bio Priority
Dia and Bio do not stack.
Bio III > Dia III > Bio II > Dia II > Bio > Dia
Example: If Dia is cast, and Bio is cast afterwards, Dia will be overwritten. If Dia II is then cast, Bio will be overwritten. If Bio II is cast, Dia II will be overwritten.
Note: This is not necessarily the case for player characters who have been hit with both spells.
Useful Macros
/ma "Dia III" <t> Casts onto current target
/ma "Dia III" <bt> Casts onto last target claimed by party
/ma "Dia III" <stnpc> Allows you to select a target from available NPCs
The Meaning of Dia
Dia (d-ī-ah), or often debated to be pronounced as "Dïa" (d-ee-ah), can be defined as the prefix that was derived from Greek roots, which means "to pass through or join", or defined as "the day" after the word "el dïa" in Spanish.


  • Casting Dia III will lower the target's defense by approximately 15% (39/256). This effect cannot be resisted except with Magic Shield.
v  d  e
Magic of Vana'diel: Enfeebling Magic
Bind — Blind III — Dispel — Gravity — Paralyze III — Silence — Slow III
Sleep III — Sleepga III
Gradual damage:
Dia IIIIII — Diaga — Poison I • II — Poisonga
Unavailable to players:
Bindga — Blindga — Break — Breakga — Curse — Diaga IIIII — Dispelga — Paralyga — Poisonga II — Silencega — Slowga

Magic Category Jump: Blue MagicDark MagicDivine MagicElemental MagicEnfeebling MagicEnhancing MagicHealing MagicNinjutsuSongsSummoning