Magi Gems 
Edit
Arianna with a siguel
Magi gem ore
A magi gem is a magical crystal that mages use in order to use magic. The ore that is used to make them is said to be given by the goddess. A magi gem has something called an aura, that varies depending on who's wearing it, and is not known to change[1]. Auras have a variety of colors. Magi gems are seen only as necklaces in Castoff, but there is a possibility that there are other ways to wear
them.
People that work for the capital have pointed gems, while civilians like Arianna have round gems.
It is implied that there is some skill involved in using magi gems, as it is implied that some mages are more powerful than others. It is also stated that no one (with an exception of Vector) is able to use magic without one.[2]
When in use, a magi gem will produce a magic circle or siguel. It is the same color as the gem, and has a pattern in the middle. Most humans do not use siguels.
It is implied that you have to take a test in order to be able to get a magi gem. Most civilians don't pass the test.
Characters with Magi Gems Edit
Arianna Edit
Arianna has a bright red magi gem that she uses frequently. It is quite large compared to others that are meant for civilians. As Arianna makes most of her own spells, she has a siguel. Her siguel's pattern is also much more complicated than others.
Zera Edit
Zera has a green magi gem. He is apparently very skilled with it.
General Brisse Edit
Brisse has a reddish-purple magi gem. He is apparently very capable of using it, though there are very few instances where he is shown using it.
Sonja Edit
Sonja has a purple magi gem that she is very skilled with, and uses it to create arrows and other weapons.
Terran Edit
Terran has a brown magi gem. He is not seen using it; while he is a mage, he specializes in hand-to-hand combat.
Other Edit
As mages aren't uncommon, there are other characters that have magi gems:
- A mage with a blue magi gem that protects the castle at the capital.
- A small number of mages with blue and red gems working on printing posters at the capital.
