Shadow Body
Ngthlh-ddh + Uggot
Corruption Cost: 2 Constitution damage and 1d8 Sanity
Casting Time: 1 standard action
Range: Personal
Target, Area, or Effect: You
Duration: 1 round/level
Saving Throw: None
Spell Resistance: No

The denizens of the Otherworld hold many secrets and wonders, not the least of which is that of the quasi-real body. With this utterance, you may shed your physical form and walk among the shadows as they do, but be warned: just as the light shuns them, so too will the light shun you.

Upon completing this utterance, your body dissolves gruesomely into nothingness, leaving only your three-dimensional shadow behind. In truth, your body has transformed into living, malleable darkness. While in this shadow form, you gain Damage Reduction 5/+1. You may move through cracks and holes as if you were water. Your senses stretch into the nether, as well; you gain Darkvision out to a range of 60 feet.

For all its utility and defensive properties, your dark form comes with a price: you are treated as a Tainted One when exposed to light. For example, when exposed to sunlight, you lose ⅓ of your Wound points every round.

When the spell ends, your body returns to normal, even if it is not properly configured, such as when passing through a small hole. If you are in an area too small to contain your normal body, your disorganized flesh fills the area and reincorporates to the best of its ability, likely killing you.

Echelon 1: This spell works as above.
Echelon 2: You gain Damage Reduction 15/+1 and your Darkvision extends to 120 feet.
Echelon 3: As Echelon 2, and the duration extends to 1 minute/level.
Echelon 4: As Echelon 2, but you become Incorporeal instead of gaining Damage Reduction. You gain a fly speed equal to your base speed with perfect maneuverability and may pass through solid matter. Light treats you as an Entity instead.
Echelon 5: As Echelon 4, but the duration extends to 1 minute/level.