Sleuth Upbringing

Ability Score Increase: Your Constitution score increases by 2, and one other ability score of your choice increases by 1.
Sleuthing: You are proficient in one of the following skills of your choice: Arcana, History, or Investigation. In addition, your proficiency bonus is doubled for any ability check you make that uses the chosen skill.
Languages: You are fluent in two standard languages of your choice.