Expert Collector of Vampire Assassins Expert Collector > Page: 13 Acquiring Req.: Collect at least 50 Vampire Assassins. Reward: When collecting Vampire Assassins, the Collectable Item is doubled. Vampire Assassin Lv 48 Legendary Vampire Assassin Hunter Natural Enemy (41-50) > Page: 16 Acquiring Req.: Kill at least 308 Vampire Assassins. (Vampire Assassin's Natural Enemy Title is required.) Reward: Killing Vampire Assassins grants you bonus XP. Vampire Assassin Lv 48 Vampire Assassin's Natural Enemy Natural Enemy (41-50) > Page: 16 Acquiring Req.: Kill at least 132 Vampire Assassins. Reward: Killing Vampire Assassins grants you bonus XP. Vampire Assassin Lv 48