Expert Collector of Rovers Expert Collector > Page: 11 Acquiring Req.: Collect at least 50 Rovers. Reward: When collecting Rovers, the Collectable Item is doubled. Rover Lv 18 Legendary Rover Hunter Natural Enemy (11-20) > Page: 10 Acquiring Req.: Kill at least 63 Rovers. (Rover's Natural Enemy Title is required.) Reward: Killing Rovers grants you bonus XP. Rover Lv 18 Rover's Natural Enemy Natural Enemy (11-20) > Page: 10 Acquiring Req.: Kill at least 27 Rovers. Reward: Killing Rovers grants you bonus XP. Rover Lv 18