The Bloodlines of Zoroaster are seperate Houses, each aligned to a specific Amesha Spenta. The influences of their divine heritage are obvious in their individual abilities and racial birthrights.
There are four bloodline Houses that now inhabit Avesta, after the prophet Zoroaster gathered their disparate clans together to aid the creation and settlement of the oasis city:
There is a controversial opinion that the race of Elves are in-fact a ‘diluted’ bloodline of Vohu Manah, who have lost their ability to shapeshift into the aspects of the totem animals they revere. That the elves ever had that ability however, is sheer academic speculation.