Time travel? Where are you getting that from? No seriously, I'm curious.
A combination of things.
Let's start with process of elimination.
Right now I'm assuming only one Law is
really being broken in a meaningful manner. Why? A combination of narrative and environmental awareness. We dealt with the guy who was at best bending the Third and Fourth Laws (Mental Violation Laws), we dealt with a Coven/Business/Rockefeller of Warlocks who were working 3rd/4th and 1st (Human Murder) violations at minimum. That leaves 2nd (Shapechanging others), 5th (Unwilling Human Necromancy), 6th (Time Travel), and 7th (Outer Gates Fuckery). This situation reads as an immensely emotionally complicated conflict, so we're going to discount 1st and 3rd/4th Law violations offhand due to how they'd "simplify" the emotional situation to a point.
I read "Black Magic user, safe area, no evidence of magical interference, no former Formor presence" and it says "No long lasting easily seen magical effects, powerful enough to beat off the Formor, but still needs the versatility to resolve Crime."
The First and Second Laws are not sufficient for repelling Formor alone. They can help combat, yes, but not they're not "Keep them out of this town" tier, so they're not the big ticket item here. Plus they don't Solve Crime, unless you're turning the criminals into squirrels or stoats and unleashing them upon your enemies. While the Second could be violated in an immensely large manner to turn mundanes into Formor Fighters and for Healing, this is very much reading like a solo operation so far.
The Third and Fourth have obvious magical visibility, so unless the puppets are being stored deep in the house this is a nonstarter. The Fourth
could be violated on the basis that it's the only one that actually applies to Non-Humans, so the Warlock could have a bunch of Fey enslaved, but that would get a round of resounding applause from the thread unless played for
very realistic horror. If they're being violated against Humans, this Warlock is either bizarrely uneducated about what the Wardens are about, or is an amazing bluffer and is about to pull a very strong ambush.
Plus Word of Sword suggests that Molly 2.0 is not the plot here.
The 5th Law is discounted on three counts. The first amounts to "The Unwilling restriction is almost hilariously easy to work around once you get a sense for the Dead and have enough mojo to protect yourself." The second boils down to "Necromancy isn't subtle when you need it on big enough levels." And the third spells out "If there was an Army of the Dead here in Anti-Formor amounts, this would have been a much higher priority."
If this was a 7th Law violation then this would have been a War Party rather than a delayed check in to see whom the fuck is going on. While I
can see this as a plot point segway into the conflict of Viserys's origins, this doesn't feel like quite the right place for that. Plus, visibility necessary to deal with the Formor and it doesn't directly deal with the Lack-Of-Crime element.
That leaves the 6th Law. Time Travel. The Deus Ex Machina of bullshit. The Law that OG Merlin himself played with to make The Prison to be run by The Warden.
If anything was going to provide the leverage and versatility necessary to
keep out the Formor while also allowing for the general all encompassing improvement of the Community and resolving All Crime Vectors, it would be The Groundhogs Day Loop writ large.
Of all the Laws, the 6th is basically the only one that's not self intuitive from general modern morals and ethics as well as modern pop culture mystical lore. Don't murder people, don't do things without other people's consent, don't mind fuck people, don't desecrate the Dead, and don't make deals with the Devil. When it comes to Time Travel, modern pop lore amounts to "Don't fuck it up" not "Don't do it at all" and the basic situation read here is "I did it. I
finally did it. The Cthulu fucks were kept out of town, everyone is safe, happy, and healthy, the Community as a whole is doing great, and I lasted long enough for the Big Dick Wizards to get here and help. Everything is fine now so I don't
need them, but I will never say no to actual help for my beloved people."
The conflict of this section of the Arc is likely how to deal with a blatant, flagrant, unrepentant, Law Breaker who legitimately has only helped people. The Mental Warping of 6th Law Breaking is likely "The Obsessive Pursuit of Perfection" which is something that Viserys is going relate to immensely, especially when this person managed to
win.
Assuming my various assumptions are correct, Viserys is going to have some immense internal conflict because "A competent person with a rare magic specialization who legitimately just wants to help make things better in this crapsack world, and is absolutely in need of institutional support" is damn near catnip to both him and the thread at large.
She was using Air of Nobility with a +6 charisma bonus so +16.
Doesn't Sense Motive provide a +2 SYN bonus to Diplomacy?