Expert Collector of Ethen Berserkers Expert Collector > Page: 38 Acquiring Req.: Collect at least 50 Ethen Berserkers. Reward: When collecting Ethen Berserkers, the Collectable Item is doubled. Ethen Berserker Lv 74 Ethen Berserker's Natural Enemy Natural Enemy (71-80) > Page: 3 Acquiring Req.: Kill at least 285 Ethen Berserkers. Reward: Killing Ethen Berserkers grants you bonus XP. Ethen Berserker Lv 74 Legendary Ethen Berserker Hunter Natural Enemy (71-80) > Page: 3 Acquiring Req.: Kill at least 665 Ethen Berserkers. (Ethen Berserker's Natural Enemy Title is required.) Reward: Killing Ethen Berserkers grants you bonus XP. Ethen Berserker Lv 74