Magic are rituals, large & small, which people can perform to tap into their mana pool and produce various effects. These effects vary wildly, and spells are generally available for use once learned with some very niche exceptions. Unlike skills, spells cannot be passive.
Magic can be learned and performed by all, so long as they have the knowledge to do so and a medium through which they can channel it. Mediums can be anything, including one's own voice or hands; though some mediums are made specifically to magnify magical effects, such as wands and staves. Some might also require specific components, or can be altered with the user's choice of medium or component use.
Improving the level of magic is done through enough practice, but is limited by the MP of the caster. With each higher level cast, the MP cost is increased greatly. A caster can use a lesser version of any spell they know for a reduced MP cost. Spells tend to change their effects with each level, be it simply stronger or gaining a new aspect to the spell.
Typically the effectiveness of magic will depend on the caster's MAG stat versus the target's RES stat (unless the target is willing). MP naturally regenerates over time. A short or long rest will increase the speed of this. When exposed to the night sky or the moon, spells have a slight chance of having zero MP cost.
MP cost is determined by the level of the spell, the area of effect, and the distance it must travel.
All humans are capable of magic as long as they have Magicka. One must learn a spell before they can use it. Learning new magic is done either by being taught by another person who knows it or from a scroll or spell book. Scrolls and spell books can primarily be found within the dungeon, but it isn't uncommon for dungeon divers to sell them.
While magic is not limited to certain categories, there are schools of magic that are often learned together simply by having similar purposes. Thanks to this categorization, it can become easier to find books or teachers.
Gastronomic magic consists of spells that focus on hunger, diet, and digestion. These spells are often learned or developed by chefs, dieticians, and doctors.
Elemental magic creates and manipulates the forces of nature. While not related to the periodic table of the elements, it can manipulate those simply because of its focus on manipulating states of matter and natural phenomena.