Expert Collector of Kezan Heavy Infantries Expert Collector > Page: 38 Acquiring Req.: Collect at least 50 Kezan Heavy Infantries. Reward: When collecting Kezan Heavy Infantries, the Collectable Item is doubled. Kezan Heavy Infantry Lv 49 Kezan Heavy Infantry's Natural Enemy Natural Enemy (41-50) > Page: 22 Acquiring Req.: Kill at least 132 Kezan Heavy Infantries. Reward: Killing Kezan Heavy Infantries grants you bonus XP. Kezan Heavy Infantry Lv 49 Legendary Kezan Heavy Infantry Hunter Natural Enemy (41-50) > Page: 22 Acquiring Req.: Kill at least 308 Kezan Heavy Infantries. (Kezan Heavy Infantry's Natural Enemy Title is required.) Reward: Killing Kezan Heavy Infantries grants you bonus XP. Kezan Heavy Infantry Lv 49