Related
Type
White Magic
Level
1
Effect
Inflicts 20-80 damage on undead foes.
Power
40
Hit Rate
96%
Target
All foes
Price
100 gil
Sold In
Cornelia
The Dia Spells all do decent damage to all Undead Monsters, and no damage to anyone else. Because they are so limited, they generally do a lot of damage—Dia1 does as much damage as Ice1, a level 2 Black Magic Spell, but does it to multiple targets at level 1. Don't believe the bestiary when it tells you Undead are "Weak" to Dia Spells, though—this just means they're affected by them at all. Dia's damage is actually non-elemental, which means no Undead is weak to it, but no Undead resists it, either.
Dia2 is a nice Spell against Undead, almost as powerful as Fire2. Either Spell will clear out most hordes of Undead quite nicely. The only problem with Dia2, as with all Dia Spells, is that it shares a Spell level with the Cure Spells, so you may not want to cast it too much. Dia2 is usually worth it, though, especially considering the relatively minor healing of Cure2 and Heal1. As with all the Dia Spells, only a White Mage can cast it, though late in the game you will find not one but two Light Axes that let anyone cast Dia2 for free.
Type
White Magic
Level
7
Effect
Inflicts 80-320 damage on undead foes.
Power
160
Hit Rate
107%
Target
All foes
Price
45,000 gil
Sold In
Gaia
Dia4 dishes out a whole lot of damage—just as much as Holy, in fact—but the problem is that there just aren't that many high-HP Undead to use it on. It can be a fun Spell to really put the hurt on Undead, but it's never worth wasting a Spell slot that could be used for Cure4 instead. This is one Dia Spell you can safely pass on.
Sprite
Power
120
Hit %
96%
Type
White Magic
LV
5
Effect
Deals 120-240 non-elemental damage to all Undead foes
Target
All foes
Sold In
Melmond (8,000 G)
HRM3 is a powerful Undead killer that can serve you well in the Ice Cave and Castle of Ordeal. It is a very powerful Spell, but unfortunately shares its level with the LIFE Spell. Don't waste all your level 5 Spell slots killing Undead, but just the same don't be afraid to use HRM3 in a pinch. If it comes to that, FIR3 is still the better attack Spell against Undead.