Ah, so it sounds like she was doing what I thought, or at least we both misread in the same way.
And yeah, definitely not good, what she's doing now, but it does mean she's already reached the point of making a replacement Victoria, and it's hard to tell whether she actually had any objection to using a human as the raw material beyond people being more likely to distract her during her work if she did. And I was thinking that she wouldn't need to make another one, but thinking on it more... well, people are probably going to object to this. So she might need to make a second replacement, and with having already had the practice this time, if another human's the most handy source of biomass...
The thing about Amy is she doesn't have a conscience, really. Not when it comes to Victoria. She cares about what happens to Victoria, and when that's in doubt Everything Is On The Table. She did this in canon too when Victoria was injured - used pheromones to pull dozens of beloved family pets to mulch for biomass (some of which then went into the Wretch!).
So if Victoria died and Amy decided to Make A Replacement (which, despite my dim view of Amy, I don't think she
necessarily would do, I can comfortably envisage courses of events that lead to her making a replacement and courses of events that do not have that at any point), humans could be on the table.
She has A: a sense of practicality; B: lingering Rules; and C: some human compassion in there she never really learned how to use with all the Rules to guide her. So she's unlikely to use humans early on, before moral decay really sets in or it proves Actually Necessary.
But humans are convenient. They're about the same shape and size so the work is way easier, they have the same composition including their giant throbbing brains. (Including any trace materials that might not be present in nonhuman brains - I'm not
super informed on brains so I'm just gonna mention the possibility, I dunno)
In fact, let's talk about those brains, because we're in fun territory and humans may in fact be
necessary depending on how far her power stretches, the scientific and physical nature of thought (which is heavily theoretical), and what exactly she wants out of the (Collateral Damage) Barbie doll she's making here.
Her Victoria is probably not gonna be a
person. Oh, they'll be a human being, they'll have a brain, of appropriate size and structure for their age. But one of the very fundamental things a brain is is an
information storage medium. Is there any information
on it?
Amy can do brains, but what exactly can she do with brains? We know she can influence brain structure and chemical issues, she can influence emotions for
sure, and I think she can do reflexes. But what can she do with
thoughts? Memories? She can definitely
wipe memories, but can she
write them? Are those thoughts and memories a product of physical structure she can copy over from Victoria, or are they stored in active processes and electrical signals that are basically outside the reach of her power?
I'm inclined to say her power doesn't stretch that far, and it seems like that's the case in the interlude - if she had that much power over brains she could have just turned the switch back on on Victoria's brain, claim she second-triggered she can do brains now, boop it's all fine.
Which means what she's gonna get is effectively a
total amnesiac that doesn't even have
language, let alone memories of Amy. If they have memories, those are memories of
being a dog (well, several dogs) that are now running on a human brain. They'd grow into a person but they wouldn't start as one. And that person is
never going to be Victoria.
Is it close enough to satisfy her? What exactly does she want out of this? A doll that reminds her of Victoria, or a person she can convince herself is Victoria even after she leaves the love dungeon? (Because let's be real the first thing she's gonna do with her new Victoria is fuck her) Is the love dungeon experience even gonna be satisfactory with a Victoria-lookalike that doesn't know human language and is either a baby or a
dog that just became a human five minutes ago?
And if it's not close enough to satisfy her... how much farther is she gonna go? Are her morals gonna decay to the point where it's fine to use a human being for this? That's another Amy question that could have multiple valid answers, and the situation can evolve in a number of plausible ways.
That said, if she does. She's gonna pick an Acceptable Target. Someone at the deep end of her contempt, the territory where even when her Rules were intact she would have gleefully threatened them with all manner of horrid biological things she could do to them. Which means it's either gonna be A Bad Person who has committed, uh, any kind of crime at all, ever, in their life (practically speaking if you're looking for one of those you basically walk into gang territory and grab someone in the gang's colours, just on the basis of 'gang goons are way easier to find than any other kind of criminal, and labelled for your convenience'), or a specific one that she decides to make her target because this should be
special.
That second list is topped by Rune and Taylor. There's all three key factors - a complete and utter lack of compassion for them to the point where she actively exults in thinking of horrible things happening to them and ideally at her hand (Rune because she's A Bad Person, Taylor because She Took Vicky), a sense of narrative appropriateness, and an unending well of
hate, both of the latter two from their involvement in the scenario around Victoria's death.
This one will be a person. They'll still never be Victoria, but with enough tweaking, not-looking-very-closely, and education, it may be close enough to satisfy her. Or she may go full Precia Testarossa/Otto Apocalypse and try to keep pushing further, and may or may not terribly mistreat the failures. (Or she may go for quantity and a Victoria Harem. This is unexplored territory so it's again, very much up to the author's read on Amy's character and how the situation develops and influences that mindset)
...Also, whether or not her replacement has powers is probably going to affect things heavily -- because if it does, Amy's demonstrated that she can manufacture parahumans with custom personalities from not-even-non-para-human biomass.
Well I'm not gonna say as a matter of
this story whether that'll be the result, but by power mechanics, she absolutely can. Anyone can, though making it happen is trickier.
Shards get squiggly when it comes to genetically-identical people. Their markers for 'my host is there' seem to be rooted in genetics, because when identical twins trigger they either get the
same powers or they fucking merge into a single body. And Bonesaw proves this even harder in late Worm when she mass-produces clones of Slaughterhouse 9 members past and present. Every single one of those clones has the same powers as the original - and a lot of the same
memories too. So all you really need to do to manufacture a parahuman is cloning. Human cloning isn't there yet but it's really not very far off technologically - we're not more complex biologically than the sheep or primates that have been successfully cloned thus far.
As far as the shard is concerned it's the same person with the same markers they use to find where their host is in the local multiverse. The shard doesn't
get humans, they can't entirely tell which is which, so they just shrug and double up. They've got the power to run multiple hosts easily, and it's more data.
(You can see this with Dragon too. Dragon doesn't travel. She's physically incapable of travel. Every time she transfers to a new server, she is
copying herself and having the old instance deleted by her safeguards. And sometimes the extant copy gets destroyed and an old one restores from backups. Every time she transfers, that's not a contiguous existence, that's a completely new and separate piece of Dragon-shaped data. And she keeps her powers the whole time, because something in the shape of that data is the marker her Shard uses to tell where she is)
You don't get a parahuman out of this. You get a human. But that human is going to get a corona pollentia as soon as the shard notices them, and if that new iteration of the host triggers, they'll get the same powers as their original. They'll even get the
memories to at least some degree, there's stuff stored on the shard and they'll restore-from-backup once they get the trigger and the connection opens up fully.
They don't require the same trigger. Any trauma'll do pretty much. They don't require the same memories or to be particularly similar as people - identical twins get the same power package, and while Bonesaw did have memories she implanted into her clones, they were not necessarily
accurate and were based more on her impressions, sometimes secondhand because she never met these fuckers, rather than their actual histories and lived experiences.
With that said, they do require
personhood, and that's a hurdle I talked about above. (Bonesaw used technology from Cranial, one of Toybox's tinkers, to install the memories and skip the decades of upbringing)
So, assuming Sylnarri goes with these mechanics (this is not precisely the garden-edition Wormverse), Amy's Victoria doll will be capable of triggering, but is unlikely to trigger until outside intervention happens to either hurt one of them or separate them. She's not going to make her Victoria experience anything unpleasant. Whatever they experience, she will make sure they do not find it unpleasant. (At least, unless she gets sufficiently angry and frustrated at her doll for Not Actually Being Victoria that she abuses them. Or even just rejecting them could be triggerworthy, considering how intensely she'll have made them love her. Whether she walks the Precia Testarossa path is its own question and is really up to interpretation)
And if that happens, she is likely going to become of intense interest to Cauldron, who will in turn be happy to let her have as large a harem of Glory Girl clones as she wants in her own private luxury section of their base if she'll make an army for them in return.
Honestly I'm not sure how much Cauldron would care? Their preference is a silver bullet, shards sufficiently unrestricted to do the job against Scion. Numbers and an army are very much the backup plan.
And more to the point they can
already make parahumans. They can make them in a very nearly arbitrary quantity. It took them five hours to make a vial at the earliest, least-developed point in their process. They can do it
faster than any amount of cloning or Amy-copies, they can do it with variety of powers instead of pure copies of parahumans that already didn't give them the silver bullet they wanted, and with less moral compromises (somehow). They can keep making parahumans until they run out of parts of Eden's body to feed to people, or run out of
humans in the entire local multiverse. Frankly, they're more likely to hit the latter point first.
Clones, produced by Amy or otherwise, are just completely uninteresting to them. At best it's an additional production line to the
dozens they're already running, and the least useful of those.
However,
other factions? Oh they'd be very interested indeed. The US government is gonna be all over this shit and so is every faction out there. Cauldron may give her a 9mm retirement just to make sure she stays the fuck out of hands they don't want her in that would further destabilize the situation, or give her a boot in the ass to make sure she falls into the loving arms of the US government's black bag programs.