Fire magic unique to mankind and their connection to fire. This mostly manifests as the creation of powerful items and artifacts, especially advanced in the Heartlands. However, a powerful few called Fyrians have even greater power over fire.
This will cover the basics of signetry and will go over how it differs from land to land.
Pyromancy is the magical discipline that allows one to exert their will over fire itself. Though ordinary humans can do it as well, Fyrians are able to control it to an almost divine degree.