**Conditions.** When the temperature is 100 degrees Fahrenheit or higher, a creature exposed to the extreme heat and without access to drinkable water must succeed on a CON Saving Throw at the end of each hour or gain 1 [[Exhaustion]] level. **Increasing DC.** The DC is 5 for the first hour and increases by 1 for each additional hour. **Taking Fire Damage.** Whenever a creature takes Fire damage while exposed to [[Extreme Heat]], it must make a saving throw against [[Extreme Heat]], this save can only happen once per turn. **Armor.** Creatures wearing Medium or Heavy armor have Disadvantage on the save. **Resistance or Immunity.** Creatures that have Resistance or Immunity to Fire damage automatically succeed on the save.