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The seven Great Evils joined as one, and were defeated and imprisoned by the Nephalem and his/her friend Tyrael, leading to the greatest triumph on Heaven's part since the start of the Eternal Conflict. Given this, Rathma must have watched in horror as Diablo 3's events came to pass, as D3's story represented the worst-case nightmare scenario that the necromancers were founded to safeguard against. While obviously things can change over thousands of years, and retcons can likewise happen, I believe I have a rational explanation why Rathma would suddenly reverse course and re-summon the mother that he once sealed away.Īfter the Sin War, Rathma founded the Priests of Rathma, the necromancers, with their guiding cause being "to protect the balance between Heaven and Hell, because both sides ultimately want the ruin of Sanctuary and humanity, and if either one gained supremacy in the Eternal Conflict they would surely destroy us all." Furthermore, Rathma was described as being rational, but not cold, and was not portrayed as an evil or sinister figure in the Sin War trilogy. Despite being Lilith's son, Rathma both hates her, and helped seal her away in the ancient past.
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So, to start with, Rathma summoning Lilith is something that should ordinarily be very lore-breaking. This theory assumes that another theory is true, this theory being that the old man in the D4 gameplay trailer is Lorath Nahr, and that the dead "old friend" whose grave he is at is Tyrael's. If my theory is correct, then despite Lilith's prominence as the de-facto main villain of D4, I think that she is actually a red herring and that another character will actually be the main villain. Now that we know that the pale cultist in the D4 trailer is actually Rathma, I think I've figured out the main bent of D4's story.
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