Expert Collector of Rock Spiders Expert Collector > Page: 24 Acquiring Req.: Collect at least 50 Rock Spiders. Reward: When collecting Rock Spiders, the Collectable Item is doubled. Rock Spider Lv 22 Legendary Rock Spider Hunter Natural Enemy (21-30) > Page: 10 Acquiring Req.: Kill at least 119 Rock Spiders. (Rock Spider's Natural Enemy Title is required.) Reward: Killing Rock Spiders grants you bonus XP. Rock Spider Lv 22 Rock Spider's Natural Enemy Natural Enemy (21-30) > Page: 10 Acquiring Req.: Kill at least 51 Rock Spiders. Reward: Killing Rock Spiders grants you bonus XP. Rock Spider Lv 22