Caster

A Caster is a person who uses potions and cast tools to create magic. It is extremely common to meet a potion user, since it is quite easy to just brew some ingredients together and form a weak potion. However, not all potion users are Casters. Casters must master brewing potions and go on quests of self-discovery to be able to construct a cast tool. It can take years to learn to brew potions or to make their own cast tool.

There are several different types of casters, depending on what magic they tend to use.

Other Forms of Magic
It should be noted that some magic users do not use cast tools, making them technically not a Caster, but can still use the magic in potions in other ways.