Tamors

The tamors is a kind of cactus of small size but with a very large body. Its roots go very deep underground to find water. Sucking its roots has the ability to dissipate the feeling of thirst. It does not replace water in the body, but suppresses the feeling of thirst for 1d4 hours.
Tamors roots grant a +5 bonus to DC 15 Constitution saving throws if the subject has been able to drink only half the recommended amount of water per day, or qualify for a DC 15 Constitution saving throw with no bonus if he drank less water than that instead of automatically taking a fatigue level.