Description:

• Some special abilities and environmental hazards, such as starvation and the long-term effects of freezing or scorching temperatures, can lead to a special condition called exhaustion. Exhaustion is measured in six levels. An effect can give a creature one or more levels of exhaustion, as specified in the effect's description.
• 1 - Disadvantage on ability checks
• 2 - Speed halved
• 3 - Disadvantage on attack rolls and saving throws
• 4 - Hit point maximum halved
• 5 - Speed reduced to 0
• 6 - Death
• If an already exhausted creature suffers another effect that causes exhaustion, its current level of exhaustion increases by the amount specified in the effect's description.
• A creature suffers the effect of its current level of exhaustion as well as all lower levels. For example, a creature suffering level 2 exhaustion has its speed halved and has disadvantage on ability checks.
• An effect that removes exhaustion reduces its level as specified in the effect's description, with all exhaustion effects ending if a creature's exhaustion level is reduced below 1.
• Finishing a long rest reduces a creature's exhaustion level by 1, provided that the creature has also ingested some food and drink.