Banishment
From HGWiki
Caster Level(s): Cleric 6, Wizard/Sorcerer 7
Innate Level: 6
School: Abjuration
Descriptor(s):
Component(s): Verbal, Somatic
Range: Short (8 metres)
Area of Effect / Target: Colossal (10 metre radius)
Duration: Instant
Additional Counter Spells:
Save: Will negates
Spell Resistance: Yes
Description: The caster is able to cause all summoned creatures, familiars, animal companions, and Outsiders in the area of effect to be destroyed. A number of creatures equal to twice the caster's level in HD can be banished. When cast as a Cleric spell, the caster's Charisma modifier will be used if it is greater than their Wisdom modifier.
Notes
The spell may be targeted within the described range and a visual effect will play at the target point, but the actual area of effect is centered on the caster, so creatures more than 10 meters away will not be affected. Creatures who avoid banishment (through a successful save or spell resistance) do not count towards the hit die limit.