Expert Collector of Vampire Servants Expert Collector > Page: 13 Acquiring Req.: Collect at least 50 Vampire Servants. Reward: When collecting Vampire Servants, the Collectable Item is doubled. Vampire Servant Lv 47 Legendary Vampire Servant Hunter Natural Enemy (41-50) > Page: 14 Acquiring Req.: Kill at least 308 Vampire Servants. (Vampire Servant's Natural Enemy Title is required.) Reward: Killing Vampire Servants grants you bonus XP. Vampire Servant Lv 47 Vampire Servant's Natural Enemy Natural Enemy (41-50) > Page: 14 Acquiring Req.: Kill at least 132 Vampire Servants. Reward: Killing Vampire Servants grants you bonus XP. Vampire Servant Lv 47