Marked Fate

You're cursed, and have a destined ill fate ahead of you. Perhaps you struck a dark bargain yourself, and are fully aware of it. Perhaps this condition has passed through your family, generation to generation, without you fully realizing it. Whatever the situation, you are both protected and doomed by an ill fate that lurks in the far off future... you hope. Once per long rest, you may roll a saving throw or skill check as a natural 20. However, you must treat your next d20 roll as a natural one. Finally, due to the nature of your curse, you're unable to talk about the specific nature of it if you're aware, or of your suspicions if you are not.

You gain +1 Constitution and -1 to Charisma when you take this feat.