Polymorph (Small Air Elemental)

The target creature becomes a small air elemental. It gains a +2 size bonus to its Dexterity, a +2 form natural armor bonus to AC, resist electricity 20, and vulnerability to acid. Its movement speed is increased by 30 feet. It also gains one 1d4 slam attack and the whirlwind ability. The subject may choose to resume its normal form as a full-round action; doing so ends the spell for that subject. Whirlwind: An air elemental can transform itself into a whirlwind and back again. A whirlwind is 5 feet wide, and every creature that spends a round in the whirlwind must succeed at a Reflex save or take 1d4 bludgeoning damage. While in whirlwind form, it cannot attack but it is able to use its abilities.