One of two types of Elemental Energy sometimes called the elements of morality, the other being Light Magic. Falls under Old Magic. Glows purple when pure.

Spells of Light and Darkness derive their power from the corresponding morality cores powering the Balance of Light and Darkness in the caster's Soul, rather than a separate core used specifically for casting. By convention, the diluted energy that leaves the body is sometimes written using lowercase letters (light and darkness) to differentiate it from the pure energy found in the soul (Light and Darkness), as the two serve different purposes.

Once dark energy has left the soul, it takes on a darker purple color and can manifest as either a dense fog or floating blob of matter, depending on the concentration. It is freezing to the touch, even colder than Ice Magic, though it doesn't absorb heat from the air more than an inch or two away. When spread especially thin, it can be used to block out light from any source.

Light and dark energy are natural opposites, and if one touches the other, the two will be annihilated.

If dark energy touches the skin, it will be drawn to the Energy Channels in the body, hurting the target's ability to cast spells and sometimes even interfering with the passage of Life Force. A being with a greater amount of Light in their soul will be more affected by spells of darkness.

Because Dark energy is present in some amount in every soul, everything with a soul is theoretically capable of wielding it with the proper training, although it can be harder to learn later in life and its strength is directly proportional to the amount of Darkness in the caster's soul.