five levels of exhaustion
Must recover before gaining the effects of a rest
Half speed
Disadvantage on all checks
No healing or mana restoration
Fall unconscious
Take lvl Exhaustion for failure to eat or drink in 24 hours
Take lvl Exhaustion for failure to rest in 24 hours
Take lvl Exhaustion per hour exposed in extreme weather (cold, hot, rain, snow, ECT
Gain exhaustion from failed difficult terrain checks
Gain exhaustion from failed endurance saves