The Apprentice stone is pretty good, i find. Sure, your magic regenerates slower, but absorbing half of all incoming spells is pretty powerful. Especially if you're a Breton, and can use your own magic absorption ability. But, this is Twilight, not some random Breton, so Mage stone is likely better. As for the two big factions, I actually played through the game without choosing either of them, I didn't get involved in that civil war. However, if I had to choose, I'd choose the Imperials, because they seem to be the fastest way to stop the war. That said, if you could get both sides into a peace treaty, that, I think, would be optimal. And perfectly fitting for Twilight 'Princess of Friendship' Sparkle.

I hope Twilight doesn't zero sum if she ever finds out what the Elder Scrolls Universe really is

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please, she will chim easily and then get ticked off when she realizes she has even less actual power as a 'god' then she had as a mortal.

so not that diffrent from what happens in equestria really....

I'm hoping you do the side quest, waking nightmare, because imagine twilight sparkle's reaction to seeing a destroyed library.

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I do plan to throw key side Quests into the story. That's going to be fun to write

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Also I hadn't played skyrim for a while but after reading this. Well this brony breton had a need to fight as spellsword again. So thanks