Essence

Not a person but the negative image of a place a person ought to be. Shadows flee the light but can sap vitality from the living with a single touch.

Books, pages, and their contents.  Though some enchanted Grimoire's have special properties, even mundane books sitting on shelves have some of these basic properties.

Thought by some to be dream elementals, sandmen are humanoid beings composed of bluish silver sand who patrol the Astral in search of those who do not belong. They are known to attack seers, succubi, and undreaming Astral travelers on sight. Most mortals only know them for their other function, however, which is to put waking mortals to sleep by drawing them into the Astral.

Simple beings birthed from the Maelstorm element of Air.

Simple beings birthed from the Maelstorm element of fire.

Specters are ghostly undead. While they can be summoned or bound by necromancy, many come into being spontaneously, created from the unquiet spirits of those who died under special circumstances.