The tempest body degrades to dust after 100,000 charges of combat, and cannot be repaired. Fighting in Raids does not degrade it at all. When wearing the full regular or Achto Tempest set, or a mix of the two, there is a 2% chance per piece that all of your defensive abilities will have their cooldowns reset. When this happens, there is a 1 minute cooldown before they can be reset again. Owning the tempest body also doubles the chance of getting the Achto Tempest Body as a drop from one of the Raids bosses. If you die in the Wilderness with the tempest body, it will drop 6 million coins, instead of the item.