Dismissal

Caster Level: Bard 4, Cleric 4, Wizard/Sorcerer 5
Innate Level: 4
School: Abjuration
Components: V,S
Range: Short
Save: Will Negates
Spell Resistance: Yes
Area of Effect: Colossal
Duration: Instant
Additional Counterspells: Gate
Description: All summoned creatures, animal companions, and familiars belonging to enemy spellcasters are unsummoned within the area of effect.