Focus2

Type Black Magic
Level 3
Effect Lowers foes' Evasion by 10 points.
Hit Rate 115%
Target All foes
Price 1,500 gil
Sold In Elfheim

Learned By

WM
RM
BM
Kn
WW
RW
BW
Ni
The effect of Focus2 stacks with the effects of Focus1 as well as itself.

Focus2 is a much better version of Focus1, because it hits all targets. This makes it less of a boss Spell and more of a useful debuff for a group of evasive enemies. Unfortunately there are very few situations where you'd rather use this Spell than Fire2 or Bolt2. It's an interesting idea, but generally if you really need to lower an enemy's Evasion, Focus1 will do the trick, and without wasting an otherwise useful Spell slot.
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Elfheim L3 Bl.Magic
Fire2 Haste

Related

Focus1

Type Black Magic
Level 1
Effect Lowers a foe's Evasion by 10 points.
Hit Rate 115%
Target One foe
Price 100 gil
Sold In Cornelia

Learned By

WM
RM
BM
Kn
WW
RW
BW
Ni
The effect of Focus1 stacks with the effects of Focus2 as well as itself.

As Spells go, Focus1 is a bit anticlimactic. 10 evasion isn't an insignificant debuff, but if's nothing to write home about, either. It doesn't help the Focus2, which does the same thing to all enemies, is only a level 3 Spell. Still, it's a useful Spell to cast at the beginning of a long fight, and it is both accurate and non-elemental so it remains useful for a long time. Once your level 1 damage Spells become obsolete, Focus1 is not a bad alternative to take a dropped slot.

LOK2

Sprite
Hit % 115%
Type Black Magic LV 3
Effect Increases all foes' Evade by 20 points (supposed to decrease instead)
Target All foes

Learned by

WM
RM
BM
Kn
WW
RW
BW
Ni
Sold In ElfLand (1,500 G)
LOK2 stacks with related Spells, but those aren't the Spells you might expect—RUSE, INVS, and INV2. Yes, due to a bug, LOK2 actually increases your foes' Evade. Needless to say, you should never buy or cast this Spell.