TRAIT - Curse
A curse is an effect that places some long-term affliction on a creature. Curses are always magical and are typically the result of a spell or trap. Effects with this trait can be removed only by effects that specifically target curses.
Afflictions with this trait are manifestations of potent ill will. A curse either lasts a specified amount of time or can be removed only by certain actions a character must Perform or conditions they must meet. A curse with stages follows the rules for afflictions.
Source: Core Rulebook pg. 630