from this post a while back
and i've been thinking on it and i thought of a better way to describe it, even got pictures!
well
picture.
anyway
think of it like a reservoir in the persons body.
as said in the last, one everyone is capable, but not everyone's reservoir would be filled with a decent amount.
the amount is set, it can empty throughout the usage of it, though, as said at the bottom, it does refill.
anju(a character not yet introduced): she has a very small amount of magic, it allows her to use things like spell cards, but nothing more than that, she can't make fire on her own with out those.
Shadow: (A character not yet introduced): he has a larger than average amount
Enya: (A character not yet introduced) she is a dragon, and has innate magical ability, but her reservoir is about average.
Ruby: (a random oc) she has basically no magical ability, her small amounti n her reservoir wouldn't even allow her to use spell cards.
now for Kerren. Kerren's reservoir hasn't even been unlocked yet. but his will be over flowing. if i had to pick an apt description it would be a bomb ready to blow.
Kerren needs constant, and consistent training, and usage of his magic, because his body instinctively will need to lighten it's load so it doesn't burst out of him and kill people. heck, some even debate on locking his magic once they realize just how strong Kerren could actually be (with the proper training) and how dangerous he could be if the wrong person trained him, or as some worry, if they just pissed him off.
Everyone's reservoir can refill to their set limit after they use the magic in it, by how we refill our own energy, like eating and sleeping. Those who have a higher magical reservoir need to eat more, however. (again think like dragon ball z with the Saiyans)