You and all your gear become a partially translucent mass of rippling ectoplasm that generally conforms to your normal shape. You gain
damage reduction 10/
psionics, and you gain immunity to
poison and critical hits. Your material armor (including
inertial armor) becomes meaningless, although your size, Dexterity, deflection bonuses, and armor bonuses from force effects (such as those gained by
inertial armor) still apply to your
Armor Class.
You cannot physically attack, you lose supernatural abilities (if any), and you can't speak while in
ectoplasmic form. You can't
run, but you can
fly at a
speed of 20 feet (perfect). You can pass through small holes or narrow openings, even mere cracks, with all you were wearing or holding in your hands. You are subject to the effects of wind, and you can't enter water or other liquid. You also can't manipulate objects or activate items, even those carried along with you. Continuously active items remain active, though in some cases their effects may be moot (such as items that provide armor or natural armor bonuses).