Umbra

The umbra are undead shadow elves bound to a wailing, haunted domain, so devoted to its banshee ruler in life that they go on serving her after death. Gaunt and slender, they have dark violet skin stretched over visible bones, silver hair and indigo eyes lit by black flame.

An umbra attacks twice per round with grimy black claws for 1d6 damage each. It may instead strike at its opponent's shadow, taking a -2 penalty to hit but dealing double damage.

Umbra turn invisible at will, as the spell, to creep close; when they appear, foes suffer -4 on surprise checks, and a first such encounter calls for a fear check.

Its gaze is just as dangerous. Anyone who meets those eyes must save vs. paralysis or stand rooted in terror for 1d4 rounds. Umbra like to pop into view right in front of a foe, paralyze him with a look, and then hammer his motionless shadow at +4 to hit.

They are immune to mind-affecting and life-affecting spells, charm, hold, death magic, cold and ice, poison and disease. They see perfectly in total darkness but prefer lit places, where foes cast shadows.

Sunlight sears them for 4 points of damage each round of exposure. Any sudden blaze of bright light, sunlight or not, blinds them for 1d2 rounds, and while blind they retreat from it. A splash of holy water deals 2d4 damage.

They drift through the tunnels of a hollow, wailing mountain awaiting orders, and patrol the domain hunting for the banshee's lost baby.

When the banshee first became lord of her domain, more than five hundred umbra answered to her. Their ranks have thinned over the years, and fewer than one hundred remain today.