Dragonmarks are mystical symbols that appear on the skin of certain individuals in the world of Eberron. These marks grant their bearers unique magical abilities and are often tied to specific bloodlines. There are several types of Dragonmarks, each associated with different houses and powers, such as healing, transportation, or elemental manipulation. The presence of a Dragonmark can influence a character's identity and social standing, as they are often linked to the powerful Dragonmarked Houses. These houses play significant roles in trade, politics, and warfare, making Dragonmarks a vital aspect of Eberron's culture and economy.