Wayfinder's Guide To Eberron -

Low-level arcane power is integrated into everyday life, powering lightning rails (trains), elemental airships , and street lanterns.

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 . Wayfinder's Guide to Eberron

Shapeshifters who can alter their appearance at will. Low-level arcane power is integrated into everyday life,