Feng Shui: The Lost Island
You can redirect the flow of your chi and become temporarily immaterial, transferring your physical form into the ghostly spaces between the mortal world and the Netherworld. This makes you completely immune to all physical attacks including unarmed attacks, bullets, melee weapons and explosions. You remain fully vulnerable to all forms of supernatural damage, including magic weapons, spells, creature powers, fu schticks, and arcaonwave effects. Damage caused by falls affects you normally.
While you are immaterial you also can not affect the physical world in any way. Not only can you not pick up a pencil or ride in a car, you also cannot use any attack form, including any creature powers, while in this form. However, while Insubstantial you are completely visible and can speak and hear normally. Unless you also possess the Flight schtick you are still affected by gravity. The chi flow of the Earth keeps you from falling through the ground (which is why you still take Damage from falling). You can even climb stairs and walk on the upper floors of buildings which are still connected to the Earth. However cars, planes, boats or any other structure that is not firmly and permanently connected to the Earth is as insubstantial to air to you.
Becoming or ceasing to be Immaterial requires a full sequence where you can do nothing other than concentrate on the transformation. During the transformation from material to immaterial, you are vulnerable to all attacks. When transforming from immaterial form to material form you are only vulnerable to supernatural attacks until the transformation is complete. Once you have transformed from one state to another, you must wait for at least 10 minutes before transforming again. Shifting to or from the immaterial states places a considerable strain on both your mind and your body. Prerequisite: Damage Immunity and Insubstantial.