MAGICIAN'S LAW
If your Mugena is weak and you aren't strong willed then you will die.
MAGICIANS LAW #2
If you violate the taboo by traveling to other lands or using non-elemental Mugena then you have committed a sin that will follow you for the rest of your existence.
LAW 3
Committing more than 1 sin will get you sent to nothingness or as humans know it "Purgatory".