Bio

From FFXIclopedia, the free Final Fantasy XI encyclopedia

Deals dark damage that weakens an enemy's attacks and gradually reduces its HP.

Description Spell cost: 15 MP Spell element: Dark Magic skill: Dark Magic Jobs: Level 10 Black Mage Level 10 Red Mage Level 11 Puppetmaster Automaton Magic Skill 33‡ Level 15 Dark Knight ‡Note: Automatons learn this spell automatically once they have the requisite magic skill. They do not need to use a scroll.

Timers Casting Time: 1.5 seconds Recast Time: 5 seconds Other Uses Resale Price: ???~??? gil

How to Obtain

Auction House Category: Scrolls > Black Magic (

)

Merchants

Price: 360 - 416 gil
Name	Location	Type
Aroro	Port Windurst (H-8)	Standard Merchant
Regine	Port San d'Oria (J-8)	Standard Merchant
Zaira	Bastok Markets (H-5)	Standard Merchant

Other Information

Enemy Attack down effect

Attack is reduced by 27/512 (5.27%)

Dia / Bio Priority 

Casting Bio of the same tier as its Dia counterpart will result in the Dia status being removed (Dia and Bio do not stack). 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.

Bio III > Dia III > Bio II > Dia II > Bio > Dia

Application

• Use of Dia in a party should be balanced with the use of Bio as Bio will overwrite Dia, but Dia will not overwrite Bio. Dia should generally be used on high-defense mobs such as Crab.
• Use of Bio in Campaign Battles counts toward Elemental Magic Damage in terms of rewards calculation, despite its primary use being that of enfeebling. The reward is based solely on the initial damage reported in the log, and not on the overall damage-over-time.