Traits are qualitative aspects of a Sim in The Sims Medieval, and have in-game influence in the form of trait-specific buffs/debuffs, interactions and events. Ordinary traits can have a mix of both positive and negative effects, while Fatal Flaws will only have negative effects, and Legendary Traits will only have positive benefits. Fatal Flaws may be able to be replaced by Legendary Traits via special quests.
By default, each Sim has 2 Traits and 1 Fatal Flaw.
List of Traits