Rain of Frogs

Range close (25 ft. + 5 ft./2 levels)
Effect one swarm of poisonous frogs
Duration concentration + 2 rounds
Saving Throw none; Spell Resistance no
Summon a swarm of poisonous frogs, that attacks
all other creatures within its area.
If no living creatures are within its area, the swarm
attacks or pursues the nearest creature.