Magical birthmarks that grant hereditary power to the great merchant Houses of Khorvaire. The guide details 12 standard marks and the unpredictable, dangerous Aberrant Dragonmarks .
Shapeshifters who can alter their appearance at will. Wayfinder's Guide to Eberron
Living constructs built for war now seeking a purpose in peace. Magical birthmarks that grant hereditary power to the
The guide emphasizes that Eberron is a world where magic is "wide, but not deep". but not deep".