Hello, this seem like fun. I will be working on an character sheet.  How does magic manifest? Are there tests to check for mages? Are there schools once a mage has been found?  Does one need incantations or is it more like you think it and it happens?  

In case you have not gathered, I want to do a battle mage.  Preferably of peasant class unless magic only manifests in noble or higher families. any and all advice will be greatly appreciated.