Polymorph (Small Air Elemental)

The target creature becomes a small air elemental. It gains a +2 size bonus to its Dexterity, a +2 natural armor bonus, 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. 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.