Wild Shape (Small Air Elemental)

You become a small air elemental. You gain a +2 size bonus to your Dexterity, a +2 natural armor bonus, resist electricity 20, and vulnerability to acid. Your movement speed is increased by 30 feet. You also gain one 1d4 slam attack and the whirlwind ability. Whirlwind: An air elemental can transform itself into a whirlwind and back again. The whirlwind is 15 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.