As this is a fantasy based world, there usually needs to be some kind of magic system in place that the residents can use. You can have as many or as few as you want. The magic systems can’t really be properly compared in terms of power, but I will try my best.

IMAGINATION BASED

The users of this magic manipulate the world to their will, but often at great cost to themselves. Their only limits are the power of their imagination and the strength of their will. It is common that there will be a chant associated with it in order to make it easier to recall a specific image.

CULTIVATION BASED

Cultivation typically revolves around the absorption of ambient magical energy and refining it within your own body. Practitioners of this brand of magic typically will gain near physical immunity to damage with enough time. They focus on circulating their magic throughout their bodies. External magics tend to be imagination based. There are typically Earth, Water, Air, and Fire energies that are cultivated separately. The main drawback is that it often takes a very long time to cultivate.

GEOMETRIC BASED

In geometric magic systems, the organization of geometric shapes in relation to each other can be used to create magical effects. They are often able to create effects that would otherwise be impossible with their own magical energy. The main drawback is that users have to memorize the constructs, else their spells might simply explode in their faces.

RUNIC BASED

This is a system similar to the geometric system in which certain runes symbolize different concepts which, when powered by magic, will create a certain effect. This system is more versatile than the geometric system, but less energy intensive than an imagination system.

RITUAL BASED

This is a system that is a hybrid of the Runic and Geometric Magic Systems. You will have to draw up a ritual, which will often include a magic circle with shapes around it. It is very versatile, though there obviously are dangers when experimenting. The main drawback is the amount of time and resources often needed to set up the rituals. There will be an example at the bottom of the chapter.

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SPIRIT-TRADE BASED

People make contact with some kind of spirit that will lend them it’s power in exchange for something else. Sometimes they want money, sometimes sacrifices, sometimes information. Which ‘Patron’ one gets is often a matter of luck, though it might be that a single family learns how to call a specific spirit, in order to make sure that they don’t get an inferior one.

MAGICAL ITEM BASED

People use magical items, which are typically made from magical creatures, to cast spells. These items are usually wands and can be used as a focus for magic energy. It can also be a staff, amulet, gauntlet, or any number of other things.

CREATE YOUR OWN!

You can even create your own, personal magic type. Here is what you need to consider.

WHERE DOES IT COME FROM?

Does it come from gods? Yourself? Items? Some other place?

HOW DO YOU USE IT?

Do you use your imagination? Draw runes on the ground? Manipulate the universe through verbal commands?

WHO HAS IT?

Does everyone have it? Random people? Those Chosen by the gods?

WHAT CAN IT DO?

Manipulate the elements? Create more of the elements? Enhance technology? Destroy matter? Anything you can dream of?

HOW DO YOU GET STRONGER WITH IT?

Get older? Absorb the magic of others? Eat the right food? Exercise your magical muscles? Exercise your real muscles? Learn new magic symbols? Get lucky? You don’t get stronger?

CAN POWERS BE COMBINED?

Can someone combine their flashlight spell and their vine growth spell to make vines grow on whatever the light shines on? (as an example).

An example of a "time" rune

A basic ritual diagram.

if you put the time runes into the numbered areas, you might get a time slowing ritual or something. I don't know, I'm no expert.