Faerie Fire

Spell
Class	Cleric
Level	5
Resource Cost
Mana	8
Stat Requirements
Wisdom	14
Intelligence	10

Faerie fire is a curse that reduces the armor class of its target, based on the caster's cleric level. The spell only lasts a few ticks but can be recast even in combat.

Formulas

The AC penalty applied by this spell appears to be 10+(SpellLevel*2). So a level 5 spell would reduce the target's AC by 20, whereas a level 30 spell would reduce it by 70.