Navarr hearth magic
Designs grant permanence - a complex design represents a journey, but it also represents the idea of permanence. An oath is sealed with an abstract design, and tracing them out is a hearth magic. Following a path, repeating the actions of someone who has gone before, gives extra weight to the journey. The Trods are the most obvious example of the use of designs.
Tattoos and brands are also powerful, they add great weight and power to sworn oaths and rituals of loyalty and binding. Many Navarr choose to cement vows and solemn undertakings with a tattoo or a brand hoping to draw on the power of the mark to keep them true to their pledge. A prominent mark that can be clearly seen is more powerful than a similar mark hidden on the body.
Blood is not a hearth magic - there is no known inherent magical effect in blood.
Liaven
The Egregore of the Navarri is Liaven. It always appears dressed as a Vate, reflecting the role of the Vate as the servants of the Nation. Liaven changes with the seasons; young in the Spring and decrepit in the Winter. In the winter Liaven is hunted down and ceremonially slain by the Thornborn, so in the spring it can be born again. Regardless of the season, Liaven is optimistic and amicable and relishes in tales of how the Navarri have added to the Great Dance.