Soul magic is a type of magic that was material to the Monsters of the Underground. Their entire beings were made up of it, and it could be used to control their nature world.

Natural

While SOUL magic can take a variety of forms, it's most characteristically attributed to the visibility of the user's SOUL around where their heart normally would be. It can also be indicated by the magic physically radiating and/or glowing around the user, although this is not always true for every SOUL magic user.

Although it is possible to use SOUL magic in reality, it's most common to draw an opponent into what is known as the "fight screen", a pitch black mental space that has a video game-like interface. Within the fight screen, the opponents are represented as their SOULs, and can only attack in a turn-based style.

The effects that SOUL magic has depends on the color of the magic. For example, light blue magic will only deal damage on a moving target and orange attacks will only deal damage to a standing target.

Heal wounds

Defense

Construct and craft objects such as clothing, buildings, and even food

Blend into technology

Offense

Negative status changes

SOUL magic is heavily based on the person utilizing it, and can have different effects based on the color of the user's SOUL, with each color representing a core value. The most common colors are:

Red: Determination

Light blue: Patience

Orange: Bravery

Blue: Integrity

Purple: Perserverence

Green: Kindness

Yellow: Justice

For non-Monsters with SOUL magic, using magic expends magic power, or MP, which can be refilled by consuming magic food, or by resting. Monsters, however, can naturally use magic infinitely, the strength of which depends on their age, skill, endurance, and abilities.

Magic is generally pulled from the natural magical energy in the environment, and in the world where Monsters existed, it was in abundence. In Hyrule, however, magic works much differently and comes directly from Divine (or demonic) beings. Therefore, in order to use SOUL magic, one has to pull energy directly from the source, a.ka. the Divine Themselves.

SOUL magic cannot change natural laws. For example, it cannot bring back the dead.

Non-Monsters are required to be magically-inclined before they can harness the power of their SOULs. Magically-inclination is determined by birth: if both non-Monsters are magically-inclined, their children are guaranteed to be as well. If only one parent is magical, there’s a 50% chance for a child of the same gender, and only a 25% chance for different-gendered children, to inherit the ability.

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