Shadow

Shadows were a type of incorporeal undead that resembled nothing more than their namesake. These wraith-like creatures existed to slay living beings, which they hated and desired to feed upon. When a shadow touched a living creature, it sapped the being's strength. Any living creature slain by a shadow rose as a shadow soon afterwards.

Combat
Shadows were known to hesitate briefly when confronted with someone wearing a silkstone.

Ecology
Shadows often traveled in groups; hiding from the sun in the depths of the world or within buried ruins and crypts. Shadows could be found anywhere, and appeared as patches of mobile gloom with a more or less humanoid shape. Shadows were always chaotic evil.