With a favorable wind, a ship can sail at much greater speeds than normal. Thus, most every captain enlists the aid of a friendly druid who can request assistance from the elements. In so doing, the druid creates a small, carefully controlled tempest which keeps the ship's sails filled with air. Of course, larger ships can gain greater benefits from this spell due to their greater number of sails. This spell requires a small amount of prepared feathers to be cast. Races with feathers will automatically choose to pluck themselves if no other feathers are available.