A creature with this trait is a member of the fetchling ancestry. Fetchlings were once human, but generations of life in the Netherworld have transformed them.

This magic comes from the occult tradition, calling upon bizarre and ephemeral mysteries. Anything with this trait is magical.

A creature with this trait is primarily constituted of or has a strong connection to occult magic.

These effects transform the target into a new form. A target can't be under the effect of more than one polymorph effect at a time. If it comes under the effect of a second polymorph effect, the second polymorph effect attempts to counteract the first. If it succeeds, it takes effect, and if it fails, the spell has no effect on that target. Any Strikes specifically granted by a polymorph effect are magical. Unless otherwise stated, polymorph spells don't allow the target to take on the appearance of a specific individual creature.

If you take on a battle form with a polymorph spell, the special statistics can be adjusted only by circumstance bonuses, status bonuses, and penalties. Unless otherwise noted, the battle form prevents you from casting spells, speaking, and using most manipulate actions that require hands. (If there's doubt about whether you can use an action, the GM decides.) Your gear is absorbed into you; the constant abilities of your gear still function, but you can't activate any items. You lose your Speeds and gain those of the battle form. If a polymorph effect causes you to increase in size, you must have space to expand into or the effect is disrupted.

Magic with this trait involves shadows or the energy of the Netherworld.

Planes with this trait are umbral with murky light. In the Netherworld, the radius of all light from light sources and the areas of light spells are halved.