Alright finally time to get off this hiatus for good, Anastasia's Profile anyone?
Anastasia Nikolaevna Romanova
While it will be difficult to fully compare and contrast the differences between Lostbelt Anastasia and Chaldeas Anastasia due to the nature of the latter not really getting the chance to really flex out the difference in terms of Viy, this will ultimately be a combo of both of their feats.
I will also include what she does in Christmas 4 for the sake of completion since it will further help out with Chaldeas Anastasia and thus Lostbelt Anastasia as well.
Entire Discussion of Kadoc's Anastasia and Viy in particular here
Mini Discussion of the Romanov Family Magecraft here
Last moments of Anastasia's life and link to Viy here
Alright, let's get to the actual parts now:
Viy isn't actually based on the folklore of Gigol's stories and drew inspiration from Balor of Irish Myth. As well as other sources like Solodiviy Bunio, whose gaze can reduce towns to ashes and Boniak, who has killed no less than 40,000 people. And is explicitly stated to be her secret weapon. Kadoc implies Viy snuck into PHH to get it's abnormal power(and most likely influenced how strong PHH Anastasia is in the process)
Kadoc's Anastasia was ultimately twisted by him summoning her within the Lostbelt, making her more powerful than her PHH Counterpart but also forgetting chunks of her past in the process(Which she sees as a boon... Chaldeas Anastasia does NOT approve) and making her part Yaga.
The powerboost Lostbelt Anastasia has that Kadoc would be one of the 3 Crypters to complete Part 1 and defeat Goetia next to Wodime and Daybit if he had her per Nasu's Interview.
Strength Feats?
In Christmas 2020 NA, Anastasia ends up lifting up Ivan The Terrible similarly to an upside-down backpack(Kinnikuman reference) with ease despite having the Strength Rank of E. The resulting combination move, Mammoth Tusk Train, is done by removing the friction from their feet using Ice Magecraft to move insanely fast.
Bradamante at first believed Anastasia must have been using Magecraft to enhance her strength to lift Ivan... only to then realize Astolfo kinda disproves that theory(though he uses Monstrous Strength for it) only to just go with the fact Anastasia is just that strong enough to do it.
Even after the ingame fight, Anastasia and Ivan are barely winded and can still do the move to the point Bradamante even says just avoiding the attack still carries a massive level of force behind it.
To put this into perspective: Ivan as we see him ingame and in Chaldeas has a height of more than 5 meters and over 2.5 Metric Tons. The 1985 Guinness Book of World Records has Paul Anderson lift 2.84 Metric Tons in a back lift. This may make Anastasia feat far less weaker by comparison except...
So in a technical sense, Anastasia would be FAR superior physically than Paul Anderson, especially since she would still have to, you know, MOVE with that same level of uneven mass that is Ivan The Terrible multiple times without being the slightest bit winded on top of that(Which the game helpfully pointed out at that).
After Ivan basically comes off as a perv, Anastasia wanted to throw him off the pyramid but refrained from doing so as her goal is more important.
In Enma-Tei, after Anastasia gets hit with a mudball to the face, she states she always pays back transgressions a hundred million fold. Mash and Goredolf see her place a Gem into the Mudball she wiped from her face and throws it back at the Monkey. Diarmuid states that the Monkey was sent into a corkscrew and was flying from the hit and Goredolf states it was an underhanded throw at that(Which... is really, really hard to get it to any real level of speed or strength in the first place).
Defense?
Well, Lostbelt Anastasia ultimately dies taking the bullet for Kadoc from Billy The Kid's 3rd Ascension state.
It's also implied Lostbelt Anastasia would have also died against Avicebron's unstable Ice Golems if it wasn't for Kadoc.
Now we will get to the Skills:
Shvibzik: B
Glacial Charisma: B
Mystic Eyes of Clear Sight: D
Viy, Viy, Viy!: Dash – Elemental Eyeballs
She uses this Noble Phantasm three times.
Once against Avicebron's Golems, taking them out instantly.
Another against Salieri's Noble Phantasm to defend herself and Kadoc and winning against that.
The final time is against Ivan The Terrible's Mammoth, which did nothing against it.
Sumerki Kremlin: Afterglow, Citadel of Abominable Blood

Anastasia Nikolaevna Romanova
The day before he was murdered, Alexei revealed to his older sister, Anastasia, of a secret handed down the Tsars. It is said that a “mysterious thing” is connected to the Tsars for generations. It protects the Tsars, but it also does harm. “It” is whimsy, mysterious, and cannot be seen by humans at all.
Viy – a fairy, or perhaps an Elemental – signed a contract with the Romanov Dynasty and was used as a familiar for the sake of maintaining the life of the House of Romanov.
But before Viy could accept the contract, Anastasia had likewise been murdered. Viy chose to unite with Anastasia in order to supplement her Saint Graph.
By having a girl and an Elemental that should have been harmless supplement each other, they are able to achieve a promotion to the status of a Heroic Spirit.
… In the Russian Lostbelt, Anastasia appears as a Servant of Kadoc Zemlupus. It turns out that while she was showing her face as a queen and her face as a girl, she was also toying around with the too-serious Kadoc.
While it will be difficult to fully compare and contrast the differences between Lostbelt Anastasia and Chaldeas Anastasia due to the nature of the latter not really getting the chance to really flex out the difference in terms of Viy, this will ultimately be a combo of both of their feats.
I will also include what she does in Christmas 4 for the sake of completion since it will further help out with Chaldeas Anastasia and thus Lostbelt Anastasia as well.
Entire Discussion of Kadoc's Anastasia and Viy in particular here
Mini Discussion of the Romanov Family Magecraft here
Last moments of Anastasia's life and link to Viy here
Alright, let's get to the actual parts now:
Viy isn't actually based on the folklore of Gigol's stories and drew inspiration from Balor of Irish Myth. As well as other sources like Solodiviy Bunio, whose gaze can reduce towns to ashes and Boniak, who has killed no less than 40,000 people. And is explicitly stated to be her secret weapon. Kadoc implies Viy snuck into PHH to get it's abnormal power(and most likely influenced how strong PHH Anastasia is in the process)
Kadoc's Anastasia was ultimately twisted by him summoning her within the Lostbelt, making her more powerful than her PHH Counterpart but also forgetting chunks of her past in the process(Which she sees as a boon... Chaldeas Anastasia does NOT approve) and making her part Yaga.
The powerboost Lostbelt Anastasia has that Kadoc would be one of the 3 Crypters to complete Part 1 and defeat Goetia next to Wodime and Daybit if he had her per Nasu's Interview.
Strength Feats?
In Christmas 2020 NA, Anastasia ends up lifting up Ivan The Terrible similarly to an upside-down backpack(Kinnikuman reference) with ease despite having the Strength Rank of E. The resulting combination move, Mammoth Tusk Train, is done by removing the friction from their feet using Ice Magecraft to move insanely fast.
Bradamante at first believed Anastasia must have been using Magecraft to enhance her strength to lift Ivan... only to then realize Astolfo kinda disproves that theory(though he uses Monstrous Strength for it) only to just go with the fact Anastasia is just that strong enough to do it.
Even after the ingame fight, Anastasia and Ivan are barely winded and can still do the move to the point Bradamante even says just avoiding the attack still carries a massive level of force behind it.
To put this into perspective: Ivan as we see him ingame and in Chaldeas has a height of more than 5 meters and over 2.5 Metric Tons. The 1985 Guinness Book of World Records has Paul Anderson lift 2.84 Metric Tons in a back lift. This may make Anastasia feat far less weaker by comparison except...
Fate/Strange Fake Volume 1 said:
Servants are immeasurably stronger than humans.
From all of this world’s histories, traditions, magics, and fictions from every medium, “Heroes” were selected to be summoned into the present-day world as “Servants.”
They formed the fundament of the Holy Grail War, and were absolutely essential for the eventual summoning of the Holy Grail.
Those spirits, beings immeasurably stronger than humans, were called forth to destroy one another.
Heroic Spirits are unaffected by physical attacks and immeasurably strong than even the finest athletes.
“However, mere numbers will not suffice to defeat him. After all, on top of being unaffected by physical attacks, Heroic Spirits are immeasurably stronger than even the finest athletes. Of course, the Caster I have summoned is an exception. In a brawl, I should imagine that even I might have the upper hand... but that is not my concern now.”

So in a technical sense, Anastasia would be FAR superior physically than Paul Anderson, especially since she would still have to, you know, MOVE with that same level of uneven mass that is Ivan The Terrible multiple times without being the slightest bit winded on top of that(Which the game helpfully pointed out at that).
After Ivan basically comes off as a perv, Anastasia wanted to throw him off the pyramid but refrained from doing so as her goal is more important.
In Enma-Tei, after Anastasia gets hit with a mudball to the face, she states she always pays back transgressions a hundred million fold. Mash and Goredolf see her place a Gem into the Mudball she wiped from her face and throws it back at the Monkey. Diarmuid states that the Monkey was sent into a corkscrew and was flying from the hit and Goredolf states it was an underhanded throw at that(Which... is really, really hard to get it to any real level of speed or strength in the first place).
Defense?
Well, Lostbelt Anastasia ultimately dies taking the bullet for Kadoc from Billy The Kid's 3rd Ascension state.
It's also implied Lostbelt Anastasia would have also died against Avicebron's unstable Ice Golems if it wasn't for Kadoc.
Now we will get to the Skills:
Shvibzik: B
This is most likely used in her Valentine's Event to get the Copy Viy to mess up Ritsuka's Room.Anastasia’s former nickname (meaning ‘imp’), while simultaneously, one of Viy’s abilities. Every small impossibility becomes a possibility. For example, an object being held by someone can be transferred to her hand. It becomes possible for “small pranks”-level Marble Phantasms, such as having a small ground crack open to have someone’s foot fall into it and be stuck there.
It is a relatively outrageous ability, but it is impossible to hurt someone with it on the level that it would kill people.
Glacial Charisma: B
A special Charisma handed down only to those who draw the blood of a Russian Emperor.
Mystic Eyes of Clear Sight: D
Mystic Eyes that descended from Balor and followed a different degenerative line from the Mystic Eyes of Death Perception. It is not Anastasia’s power, but Viy’s ability. It breaks down every Bounded Field and even occasionally discovers the weak points of a fortress. It is said that the Russian Tsars fought at an extreme advantage in sieges by being blessed with this ability from Viy.
Viy, Viy, Viy!: Dash – Elemental Eyeballs
Rank: EX
Classification: Spirit Noble Phantasm
Range: ?
Maximum Number of Targets: ?
The full power release of Viy’s Mystic Eyes. The eyeballs that see through everything distort even the principle of causality to create weak points.
She uses this Noble Phantasm three times.
Once against Avicebron's Golems, taking them out instantly.
Another against Salieri's Noble Phantasm to defend herself and Kadoc and winning against that.
The final time is against Ivan The Terrible's Mammoth, which did nothing against it.
Sumerki Kremlin: Afterglow, Citadel of Abominable Blood
As far as I know, I'm not sure if she ever used this Noble Phantasm yet(Maybe in her first or second Interlude maybe?)Rank: A+
Classification: Fortress Noble Phantasm
Range: 1~99
Maximum Number of Targets: 11 people + 1 animal
Sumerki Kremlin (Twilight Fortress inside the City). A recreation of a fortress (Kremlin, or Kreml) of the type scattered all around Russia. Anastasia, who draws the blood of the Tsars, can summon an extremely strong and splendid fortress, using it as protection for herself. And this castle cannot be entered except by those that Anastasia has chosen for entry. The entire fortress will make their attack on intruders and anyone else except those that Anastasia has chosen for entry.