Endurance Training

Either through specific training or a specific lifestyle you are able to endure physical exhaustion better than most. You gain the following features:

-increase your Constitution score by 1, to a maximum of 20

-Whenever you would gain a level of exhaustion you may roll a Constitution saving throw, with a dc of 18. Each time that you use this feature before you take a long rest increase the Dc by 4. At the DMs distraction this dc may be higher due to environmental changes.