Man, we literally see an Outer God descending in her ending. The same Outer God to whom her entire culture had been devoted from the inception. We literally hear her proclaming that she's delivering the world to said Outer God. Not even touching on Ranni's character or track record here. Just, we're directly shown what she wants to do, almost as directly as we've been shown that the world dies with the First Flame. I swear "Ranni wants to remove the interference of outer beings" is a level of delusion that can only be explained by simping.
And, well, besides the whole lightshow at the end, she is literally a puppet, in an example of FROM's typical level of subtlety.
You are simply wrong, but some of the fault lies in the bad translation.
Here's the japanese text and it's proper translation.
私は誓おう すべての生命と、すべての魂に
“I shall swear to all lives and souls”
これよりは星の世紀
“From hereon is the Age of Stars”
月の理、千年の旅
“The laws of the moon, a thousand year journey”
すべてよ、冷たい夜、はるか遠くに思うがよい
“To all, you may think of the chill night as infinitely far away”
恐れを、迷いを、孤独を そして暗きに行く路を さあ、行こうか
“And now, let us go on our path of fear, doubt, and loneliness, into darkness”
Basically, she and you will fuck off on a thousand year journey into the dark of space and stay as far away from The Lands Between as possible. And since she fucks off with the Elden Ring also, she's also taking the Greater Will's influence with her.
And the Dark Moon you see in her ending, that's not an Outer God. Female Carian Royals all have their own Moon (Ranni's Dark Moon, Renalla's Full Moon), and you can either interpret that she's making this vow in front of her moon or is using the moon as a vehicle to fuck off.
Mic dropped, nerd slapped, simping achieved!
Ranni simps also tend to overlook that she's also 100% responsible for Godwyn being turned into this fucking abomination and the world getting fucked by undeath.
And unlike many of the other demigods he really didn't deserve such a fate, Godwyn was by all accounts one of the few actually heroic and morally good characters, his lore is he literally stopped the war between Leyndell and the dragons by befriending them. I wouldn't trust Ranni as far as I can throw her.
Ranni's level of involvement in the assassination of Godwyn, and why she would have targeted him in the first place is one of the biggest question marks in the story. Ranni herself never explains that, and she's otherwise downright talkative about every other aspect of her plans, including her role in starting the Shattering. Background lore is opaque regarding the issue. The only thing for certain is that Ranni was the one who gave the Rune of Death to the Assassins that allowed them to slay Godwyn, considers everything she did to have ultimately been necessary in order to break the hold of the Greater Will, Two Fingers, and Golden Order upon mankind's destiny, and doesn't have any regrets. She considers everything she did, and does, to be a necessary evil. Notably, Melina and Ranni appear to be on good terms with each other, and Ranni's ending is the only alternative Outer God ending that she will support.
Also, while Ranni gave the Rune to the Black Knife Assassins, the Assassins themselves are ultimately loyal to
Marika and the Golden Order, not Ranni, and the assassins will seek to kill Ranni and her compatriots towards the end of her questline for defying the Golden Order, while Ranni herself outright betrayed the assassins and imprisoned their leader. This leaves multiple open questions; was Ranni
ordered to give the assassins the Rune of Death by Marika/the Golden Order/Two Fingers? Did she even know that Godwyn was a target when she gave the assassins the Rune of Death, since Ranni herself only needed the Rune to kill her own body? Did she divide the Curse Mark of Death with the assassins knowing that it wouldn't fully kill Godwyn, or was that done only so that she could kill her body?
As a final point, The Future Press guide, if you are willing to take it into account,
does say directly that Ranni masterminded Godwyn's assassination herself, though it gives no reason for why she would want Godwyn dead, and there is no known canonical reason why she would target Godwyn specifically.
I'd wager it's because Godwyn represented the Golden Order. Marika may of been a god and it may of sprung from her, but it seems that Godwyn was the go-getter. With him in a state of undeath the Golden Order wouldn't have as much power to move against Ranni.
In her ending, she's suppose to remove the Outer Will's ability to interfere in the world, does that extend to the sealed rot god beneath the land? What about the Primordial Crucible which seemed to predate the Outer Wills and the Primeval Current?
What we know from the lore is as follows.
Ranni stole the Rune of Death and it was used to fashion the Black Knives.
She timed the assassination of Godwyn with her own "suicide", so that both would achieve a form of half-death. Godwyn died in soul and Ranni died in body. This was done to unshackle herself from the Greater Will and the Two Fingers.
She imprisoned Alecto (Black Knife leader) into a gaol after they carried their assassination and fled the capital.
All Empyreans are assigned wolves by the Two Fingers and Blaidd was odd because he become loyal to Ranni. In the end he does insane, probably due to a conflict between his stated purpose and his own wants.
At the end of the quest, remaining Black Knives retaliate for the perceived betrayal and Ijji dies while fighting and killing some of them.
She goes into a journey into the stars and rids the world of the Elden Ring and Greater Will. How this effects the other Outer Gods is not stated, but we have the following line in her dialogue that could be seen as her ending all outside influence "
I am the witch Ranni. I stole Death long ago, and search now for the dark path. That I might one day upend the whole of it, and rid the world of all that came before."
What I'm not sure about is the following.
Why was Godwyn picked for assassination? Was it random or specifically chosen?
Why betray the Black Knives? Was it a fail safe against a group she could not trust and control and who now had great power or was there some other intention?
Was Marika involved in this somehow?