Expert Collector of Arkaros Slaves Expert Collector > Page: 5 Acquiring Req.: Collect at least 50 Arkaros Slaves. Reward: When collecting Arkaros Slaves, the Collectable Item is doubled. Arkaros Slave Lv 40 Arkaros Slave's Natural Enemy Natural Enemy (31-40) > Page: 10 Acquiring Req.: Kill at least 90 Arkaros Slaves. Reward: Killing Arkaros Slaves grants you bonus XP. Arkaros Slave Lv 40 Legendary Arkaros Slave Hunter Natural Enemy (31-40) > Page: 10 Acquiring Req.: Kill at least 210 Arkaros Slaves. (Arkaros Slave's Natural Enemy Title is required.) Reward: Killing Arkaros Slaves grants you bonus XP. Arkaros Slave Lv 40