Dia (Status Effect) Dia is a harmful status effect that burns the afflicted with light and illuminates their weaknesses until it wears off or is removed. Afflicted characters experience light Damage Over Time and reduced defense. As with other forms of DoT, damage dealt by the Dia effect will wake characters under the effect of sleep.

The Dia and Diaga families of spells also inflict a small amount of damage upon being cast, in addition to inflicting their Dia status effect. While the initial damage inflicted is subject to resists as with most other forms of magical attack, the status effects themselves cannot be resisted and will never fail to take effect, unless the spell is completely blocked by a Magic Shield effect, or if a Dia or Bio effect of equal/higher priority (see below) already exists on the target.

How to remove the effect

How the effect is inflicted


Monster Abilities

Other Information

Dia / Bio Priority 
Dia and Bio do not stack. Since Light and Dark are in opposition, whichever spell is higher level (requires a higher level job to use), overwrites the other.
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.
April 3, 2019 Version Update
"The defense down effect of the white magic spell Dia has been adjusted. Numbers in parenthesis represent the value when affected by the Corsair ability Light Shot.
Name Pre-adjustment → Post-adjustment
Dia 5% → 10%(13%)
Dia II 10% → 15%(18%)
Dia III 15% → 20%(23%)
Diaga 5% → 10%(13%)"
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