Expert Collector of Crazy Bone Steels Expert Collector > Page: 27 Acquiring Req.: Collect at least 50 Crazy Bone Steels. Reward: When collecting Crazy Bone Steels, the Collectable Item is doubled. Crazy Bone Steel Lv 26 Crazy Bone Steel's Natural Enemy Natural Enemy (21-30) > Page: 14 Acquiring Req.: Kill at least 51 Crazy Bone Steels. Reward: Killing Crazy Bone Steels grants you bonus XP. Crazy Bone Steel Lv 26 Legendary Crazy Bone Steel Hunter Natural Enemy (21-30) > Page: 14 Acquiring Req.: Kill at least 119 Crazy Bone Steels. (Crazy Bone Steel's Natural Enemy Title is required.) Reward: Killing Crazy Bone Steels grants you bonus XP. Crazy Bone Steel Lv 26