Expert Collector of Black Crawlers Expert Collector > Page: 3 Acquiring Req.: Collect at least 50 Black Crawlers. Reward: When collecting Black Crawlers, the Collectable Item is doubled. Black Crawler Lv 9 Black Crawler's Natural Enemy Natural Enemy (1-10) > Page: 5 Acquiring Req.: Kill at least 6 Black Crawlers. Reward: Killing Black Crawlers grants you bonus XP. Black Crawler Lv 9 Legendary Black Crawler Hunter Natural Enemy (1-10) > Page: 5 Acquiring Req.: Kill at least 14 Black Crawlers. (Black Crawler's Natural Enemy Title is required.) Reward: Killing Black Crawlers grants you bonus XP. Black Crawler Lv 9