What exactly is magic, you ask? Well, in game terms, we define magic as the manipulation of probability to achieve effects that would be impossible under normal circumstances (or, at the very least, incredibly unlikely). Now, a body that can alter probability in order to manifest magic is usually known as a mage, magician, wizard, thaumaturge, or sorcerer. Lots of colorful names, to be sure, but all of them are essentially the same thing: people that use magic.

Through long and intense studies, just about anybody can learn how to use magic. Sure, some people have a bit more... potential than others, but this doesn't matter. When it comes down to it, any sentient being can master magical practices if he wants to. This is because, more than sleepless nights studying and researches into the crypts of long dead sorcerers, the desire to master the arts arcane is what it truly takes to become a wielder of magic.

In the following sections, the essential principles of sorcery are described in detail so you can learn how magic can function in a game, whether you plan on making your very own mage, or just expect to encounter one during your many adventures.

Core Principles

Before you generate a magic wielding player character all your own, there are several basic ideas that you've got to understand first.

Spells

The principal thing to remember about magical powers is that they are not powers, in the standard sense of the word. They are instead like talents, as they are arcane formulae that a person can use to manifest magic. As such, standard methods of power negation do not work on practitioners of magic, as their powers are derived from what they know, not some inherent effect of their physiology.

These arcane formulas are known as spells. As opposed to the dangerous means necessary for ordinary heroes to acquire powers, a mage can learn a new spell with only a bit of studying and hard work. Research, also, is a large part of spell acquisition. Further, spells all affect reality in the same way, regardless of the various types of raw energy they use to fuel their effect.

Types of Magical Energy

In essence, there are three kinds of magical energy: personal, universal, and dimensional energy. Now, each mage has access to all three types of magical power, generally speaking, but players can limit their mage's access to energy types as a character limitation (see character generation, below, for more on this). The forms of magical energy function as follows:

Personal Energy: derived from the spell caster, personal energies can fuel spell effects without relying upon any outside sources whatsoever. While magic of this type is more exhausting for a mage to utilize, it is not at all hindered by the whims and dictates of outside agencies or beings. Personal energies are used primarily to affect a caster's own body or equipment, as opposed to affecting others or the outside world.

Universal Energy: this form of magical energy is drawn from the ambient and infinite power of the universe itself. The power inherent in universal energy can be used to affect people and things other than the mage himself, and is the power source of most of your more legendary spell effects, such as bolts of energy, matter transformations, etc... Universal energy magic is less stressful to use than personal energies.

Dimensional Energy: this last form of magical energy is extremely potent, as it is drawn from outside a spell caster's own plane of existence. Spells that use dimensional energy are the least stressful on a mage, as the power that fuels them does not subtract from his own energies at all. However, energy of this type is often granted to a mage by some being or race of great power, which is a risky idea, at best. Unless, of course, you like the idea of a vengeful god taking notice of you...

Types of Magical Spells

In addition to there being several types of magical energies, there are several special types of magical spells that use them. Sure, some magic spells can be defined as just 'personal' or 'universal' spells, but some don't easily fit into this mold. In the spirit of enlightenment, then, here's the skinny on these special types of magic spells:

School Spells: these are special magic spells that are usually, but not always, unique to one magical school of study (see below). They can be of any type of magical energy, of course, but only the mages who study a magic school will have access to its particular school spells.

Group Spells: a group spell is in fact several spells, normally of dimensional energy, that acts as a sort of multiple choice spell. It is actually five or six different spells, of similar type, and a mage can choose one to use each day. He need not choose it until he actually needs to use the group spell, though.

Entreaty Spells: these spells have the greatest potential power, as well as the greatest inherent risk. Dimensional energy effects also, these spells are an attempt to draw power from a specific entity, item, or plane. Planes and items usually don't cause too much trouble, but power requests from gods tend to get a mage into trouble, as the gods eventually ask for favors in return.