Type: Trait
Source: Unearthed Arcana
You don't know the meaning of the word "tired." You go all out until you simply can't continue.
Benefit: You gain a +2 bonus on Constitution checks and checks made to continue tiring activities (see the Endurance feat, for a mention of all the checks and saves to which this benefit applies). Drawback: Any effect or condition that would normally cause you to become fatigued instead causes you to become exhausted.