History Fanfic / FateHeroAndSword

* YouWereTryingTooHard: Noted mentally by Ainz when the rest of Nazarick ponders his reasons for wanting to align for Nero, as they fail to consider the obvious one -- having a World Boss as an ally.

** Ainz reveals that there was only one raid group that ever beat Medea in YGGDRASIL, and that they had to use a team of solely physical fighters, because [[AntiMagic Rule Breaker]] made mages useless. The one guy who got the dagger as a drop wouldn't stop bragging about it until they got cornered by the Argonauts and [[BalefulPolymorph turned into a pig]] ''permanently'', forcing him to make a new account.

* DidntSeeThatComing: Agravain had Mordred be Shirou's guardian during the visit to Northern Roble because he knew that Shirou would not press Mordred for details about her role if she seemed uncomfortable. [[spoiler:Due to Ainz killi Cu, Shirou ends up pressing Mordred for details about Agravain's plans anyway, because things are getting out of hand]].

* BonusBoss: Every Servant NPC Shirou made is indicated to be one, as Shirou maxed out their stats and gave them ''ridiculously overpowered'' builds. The developers of YGGDRASIL tolerated this because they were genuinely challenging foes, and modified them to have special drops (Gilgamesh would've drop a World Item if he had ever been defeated, while Medea had a chance to drop Rule Breaker).

* DidntSeeThatComing: Agravain had Mordred be Shirou's guardian during the visit to Northern Roble because he knew that Shirou would not press Mordred for details about her role if she seemed uncomfortable. [[spoiler:Due to Ainz kill Cu, Shirou ends up pressing Mordred for details about Agravain's plans anyway, because things are getting out of hand]].

** Gilgamesh is ''the'' most dangerous boss that Shirou created in YGGDRASIL, with his skills and powers (including access to ''all'' of the [[InfinityPlusOneSword World Items]]) outright making him undefeatable -- indeed, ''he never lost a fight before the game ended''. The fact that he might be roaming the new world terrifies Ainz a lot..

* ThisCannotBe: [[spoiler: Narberal Gamma is increasingly shocked when she not only sees just how powerful Shirou is but how much respect Ainz shows him]].

* UnderestimatingBadassery: The denizens of Nazarick are honestly confused by how cautious Ainz seems around the World Enemies that Shirou created, since to them, HumansAreInsects. [[spoiler: They get a rude wake-up call in this regard when Cu tracks them back to Nazarick, fights them all to a standstill (with Ainz's support, no less), and [[TakingYouWithMe killing Cocytus before he is slain]]]].

* WakeUpCallBoss: Cu is this to Nazarick -- [[spoiler: not only does he manage to get inside the Tomb and engage both the Floor Guardians and ''Ainz'', ''he kills Cocytus'']]!

* ThisCannotBe: [[spoiler:Narberal Gamma is increasingly shocked when she not only sees just how powerful Shirou is, but how much respect Ainz shows him]].

* ATrueHero: Surprisingly, YGGDRASIL actually had "Hero" as a secret class, which Shirou managed to gain a rank in through being a genuinely nice player who helped out others in need. Rather notably, he didn't gain more than two levels in it before being sent to the New World because [[WhatYouAreInTheDark he chose to keep a low profile and avoided acknowledgement for being a hero]], and leveling the "Hero" class is heavily dependent on reputation. This also means that Shirou lost access to the class upon entering the New World, as he is currently a nobody.
* UnderestimatingBadassery: The denizens of Nazarick are honestly confused by how cautious Ainz seems around the World Enemies that Shirou created, since to them, HumansAreInsects. [[spoiler:They get a rude wake-up call in this regard when Cu tracks them back to Nazarick, fights them all to a standstill (with Ainz's support, no less), and [[TakingYouWithMe killing Cocytus before he is slain]]]].
* VillainsBlendInBetter: {{InvertedTrope}} -- Camelot's [=NPC=]s have a ''significantly'' easier time integrating themselves into the New World than Nazarick, as they are not only human (and thus unburdened by the FantasticRacism that plagues the residents of the Tomb), but most of the ones sent out to gather information were explicitly chosen due to trauts that would ingratiate them toward their targets (Nero was sent to the AncientGrome themed Baharuth Empire, for example, while the Knights of the Round were sent to the MedievalEuropeanFantasy themed Roble).
* WakeUpCallBoss: Cu is this to Nazarick -- [[spoiler:not only does he manage to get inside the Tomb and engage both the Floor Guardians and ''Ainz'', ''he kills Cocytus'']]!

* ObfuscatingStupidity: Nero, ever ThePerformerKing, deliberately plays up her capabilities as an actress to hide her political talent. Archie is left dumbfounded when Nero reveals her true power and takes out a whole group of bandits.

* NormalFishInATinyPond: Ainz's thoughts reveal that Nazarick and it's [=NPC=]s are this when compared to the Holy City of Camelot -- while the Floor Guardians, Area Guardians, and Pleiades are all more than capable of harrying or defeating a player party, the Holy City of Camelot uses ''[[BonusBoss World Enemies]]'' as their version of Floor Guardians and Area Guardians, which puts them on a completely different caliber compared to Nazarick.

* TheForceIsStrongWithThisOne: When Arche uses her "All Seeing Eyes" skill to discern the strength of the bandits about to attack her and Nero in Chapter 24, she almost vomits from seeing just how ''immeasurably powerful'' Nero is, wondering how someone who doesn't use magic can be ''so damn powerful''. When she later meets Ainz and Naberal, she has a similar reaction to using the skill on Nabe, and while Ainz is has a ring on him that hides his power level, the fact Nabe defers to him immediately tells Arche how strong Momon must be at minimum.

''Fate: Hero and Sword'' is a fanfic by Paracasious. It is a crossover between ''VisualNovel/FateStayNight'' and ''LightNovel/Overlord2012''.

** Agravain and Demiurge -- both are the ChessmasterSidekick to a YGGDRASIL player, and are morally darker than their master. Agravain, however, is ''much'' more heroic than Demiurge (the latter's morality is listed as -500, '''Extremely Evil''') and unlike Demiurge, Agravain realizes that his masters (Shirou and Arturia) aren't as smart as him (or at least that they have moral issues that prevent them from being on his level).

** After using All Seeing Eyes on Nero, Arche wonders how the ditzy empress can have so much magic power without being a caster. ''Grand Order'' confirms that Nero actually ''is'' eligible for the Caster class (and is actually better suited to be one), while ''Arcade'' reveals that she is a candidate for [[BeastOfTheApocalpyse Beast VI]], meaning that Nero isn't even remotely at her strongest here.

* SitcomArchNemesis: Nero is this to Arturia, as the former looks so much like the King of Knights except for [[BuxomIsBetter having a much more developed bosom]] and [[ShamelessFarserviceGirl showing off way more of her figure]]. The latter makes Arturia unable to stand being around Nero, and [[spoiler:Agravain convinces his king to pretend to be the Valkyrie Knight by making it clear that Nero will fulfil this role if Arturia refuses]].

** Shirou to Ainz -- both were YGGDRASIL players, but while Ainz joined and eventually became leader of Ainz Ooal Gown, Shirou was a solo player. Ainz dove into YGGDRASIL to fight off the burden of being a lonely SalaryMan, while Shirou joined on advice of a friend, and then stayed because he had the opportunity to be with a facsimile of Saber that he had created. Ainz is now fighting for the shadow of the Guild he once belonged to while Shirou works to fix the New World [[ForGreatJustice because being a hero is who he is]]. Combat wise, Ainz is a caster who has enough strength to pretend to be a warrior while Shirou is a physical fighter who has magic powers that [[InstantExperet make him an even better warrior]].

** Agravain and Demiurge -- both are the ChessmasterSidekick to a YGGDRASIL player, and are morally darker than their master. Agravain, however, is ''much'' more heroic than Demiurge (the latter's morality is listed as -500, '''Extremely Evil''') and unlike Demiurge, Agravain realizes that his masters (Shirou and Arturia) aren't as smart as him.

** [[spoiler:Ainz and Shirou meeting allows the former to avoid killing Shalltear via using a traced copy of Rule Breaker provided by Shirou to undo the effects of Downfall of Lord and Country. It also spares several civilians Demiurge would have otherwise killed in his schemes because Ainz realizes he needs to keep a low profile until they can find out more about the World Enemies in the New World]].

** Arturia has multiple moments where it's made clear she wants Shirou romantically, including trying to fix the problems in the New World [[SecretlySelfish so she doesn't have to worry about him risking himself to fix them]].

** [[spoiler:Shirou uses Rule Breaker to cleanse Shalltear of the effects of Downfall of Castle and Country, sparing Ainz the need to kill her]].