The former cannot be defeated now, as they were killed by the Reaper.
I suspect two players of being the Reaper: Revan and Yashur.
As for the father of three, I suspect Revan, Yashur, and Fragment (well, theoretically, but it's unlikely considering the events of nights 1 and 3).
If I haven't made any mistakes, eliminating the monster will provide a winning strategy.
Added after 50 seconds
And yes, if the former had used their ultimate ability correctly, they would have immunity now.
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Скачать все кампании одним архивом: Яндекс.Диск Google.Диск
You can download the set of 3 Campaigns (English version) here
Одиночные сценарии Heroes V 3.1:
Незваные гости
Красный кристалл
Синий кристалл
Закат тьмы
Мультиплеерные карты для Heroes V 3.1:
Легендарная война
Сердце вулкана
Передел мира