Counterspell
Spell — see Magic and Spellcasting for the rules and the Spell Index for the full list.
Arcane 1, Divine 1 Type: protection
Range: 180’ Duration: instantaneous
This spell enables the caster to extinguish a single ongoing spell or spell-like effect that has been cast on a target creature or object. If counterspell is used on a willing creature, or an object held by a willing creature, the caster can choose which spell or effect to target. If counterspell is used on an unwilling creature, or on an object held by an unwilling creature, the creature must make a Spells saving throw. If the save succeeds, the counterspell has no effect. If the save fails, one random spell or effect on the creature becomes the target of the counterspell.
Once the target spell is determined, the caster must make an attack throw versus the spell or spell-like effect, treating it as a creature with an armor class equal to 10 plus the difference in caster level between the creator of the spell or effect and the caster. If this attack throw succeeds, the spell or effect is extinguished. If this attack throw fails, the counterspell has no effect.
Some spells and effects cannot be ended by counterspell**.** These include spells or effects that are not cast on creatures or objects, curse spells or effects, petrification spells or effects, and quest spells or effects, as well as magic items with effects of permanent duration and diseases caused by spells or effects. Counterspell can be used to extinguish spells or effects on a creature or object made permanent by ritual magic only if the caster is of higher level than whoever made the effect permanent.