The Plot Thickens
The Constitution Skill from 4 th returns, but with greater benefits.
The 4e rules were: 1
The Endurance skill is used to stave off ill effects and to push beyond normal physical limits. A creature that has training in Endurance can hold its breath for long periods of time, forestall the debilitating effects of hunger and thirst, and swim or tread water for extended periods. Some hazards — including extreme temperatures, violent weather, and diseases — require creatures to make Endurance checks to resist or delay debilitating effects.
Characters rarely use Endurance actively; the DM directs players to use it in response to certain hazards. Using the skill in that way requires no action, unless otherwise noted. See “Environmental Dangers” and “Disease” for some of the situations that require Endurance checks.
1 I’m not sure how much of the original rules I’ll keep, but re-reading them, they sound promising.
The additional benefit is the bonus from this Skill is used for your Recovery from Fatigue.
Any Class with a Saving Throw Proficiency, or any Race with a Racial Increase in Strength, Constitution, or Dexterity can choose to have Endurance as a Skill.
Any Backgrounds with a logical need for Endurance will be allowed as well, but even as I type this, I realise that this will probably require adjudication, so I’ll review them on a case by case basis.