Strength of the Defeated

You draw power from loss and fatigue, a technique that grants you the following benefits:   Your Constitution or Wisdom score increases by 1, to a maximum of 20.   In addition, when you have at least one point of exhaustion, you can take 1 minute to steel yourself against your fatigue, and draw focus from it. You gain a temporary hit points equal to your current level of exhaustion times five. While you have those temporary hit points, you suffer no effects from exhaustion. Once you use this feature, you cannot do so again until you finish a long rest.