Wild Shape (Large Air Elemental)

You become a Large air elemental. You gain a +2 size bonus to your Strength, a +4 size bonus to your Dexterity, a +4 natural armor bonus, resist electricity 20, and vulnerability to acid. You also gain two 1d8 slam attacks and the whirlwind ability. You are immune to critical hits and sneak attacks while in elemental form. Your movement speed is increased by 30 feet. Whirlwind: An air elemental can transform itself into a whirlwind and back again. The whirlwind is 20 feet wide, and every creature that spends a round in the whirlwind must succeed at a Reflex save or take 1d8 bludgeoning damage. While in whirlwind form, it cannot attack, but it is able to use its abilities.