Dispel Magic, Greater (Area)

This functions as dispel magic, except that it affects everything within a 20-foot-radius burst. Dispel Magic: You can use dispel magic to end one ongoing spell that has been cast on a creature or one area effect from a spell in the selected point. You make one dispel check (1d20 + your caster level) and compare that to the spell with highest caster level (DC = 11 + the spell's caster level). If successful, that spell ends. If not, compare the same result to the spell with the next highest caster level. Repeat this process until you have dispelled one spell affecting the target or one area effect in the selected point, or you have failed to dispel every spell.