Fragarach against Gae Bolg Fragarach being used against Saber
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FragarachWP: Gouging Sword of the War God (斬り抉る戦神の剣, Kiri Eguru Senjin no Ken?), also called Answerer: That Which Comes Later Cuts First (後より出でて先に断つもの, Ato yori Dedete Saki ni Tatsumono?) and The Retaliator, is a Noble Phantasm and Mystic Code with the ultimate form of counterattack. It is the "Sword of Retrograde" and an indefeasible weapon of the gods, divinely protected by some malicious will, that works by using a conceptual curse to warp destiny and a divine trick that uses time as its blade. It warps causality to always strike the opponent in the heart with a needle thin concentrated blast right before they unleash their ultimate attack. The condition for its use is that the opponent must use their strongest attack, and Fragarach must be used directly after the enemy's strike. It would normally be that Fragarach would kill the enemy, and the opponent's attack would also simultaneously destroy Bazett.
Despite being released afterward and no matter how fast the opposing attack is cast, Fragarach always strikes first by changing the flow of time to rewrite events so that it makes it own strike against the enemy before the opposing move was ever made in the course of the world. Rather than just rewriting events to gouge out the heart of the enemy, it is severing the fate of the combatants, reversing and changing the flow of destiny of both the user and enemy simultaneously killing each other with their attacks. The attack of the enemy, returned to a point where it "couldn't happen" due to the user being struck down by Fragarach, is wiped out by the laws of the world and the absolute system of time. No matter the power or speed of the ability, it is impossible to use if the enemy is defeated and has all of their later actions voided before they even have a chance to attack. It is an ability using one's life as bait to counter a one-turn-kill to win the battle that both kills the enemy and nullifies their attack, creating a perfect balance between offensive and defensive capabilities.
Fragarach is an "Ace-Killing Joker" and the "ultimate counter code" that responds to the "trump card" of the enemy, such as the Noble Phantasm of a Servant. Against Servants, Bazett, as a human, would be hard pressed to force them to use their full abilities against her, so she makes use of Avenger'sVerg Avesta to allow the enemy to be weakened to the point where they feel pressed to use their strongest attack in order to quickly finish the fight. Against passive trump card abilities that are constantly activated, such as God Hand, it can be used against them at any time, and against an attack used by a mount, like Bellerophon, it kills the Pegasus rather than the rider.[1] If used with the proper conditions with the "Answerer effect", it activates with as an A Rank attack after calling both out of its names. One major weakness is that it is useless against enemies without a special ability, such as an all rounded magus like Caster.[2] It can be used as a normal attack with the "non-Answerer effect", called Fragarach: Gouging Dagger of the War God (斬り抉る戦神の小剣, Kiri Eguru Senjin no Shōken?) in Fate/Unlimited Codes, but its attack power is effectively halved and only has the power of a low ranked Noble Phantasm with a C or D ranked attack. It is essentially just the equivalent of a bolt of light in that state, and it would lack any real power against most enemies. It limits the use of Noble Phantasms for those who know of it, and Lancer states she would have to keep hitting him with the low level version a number of times before the "no Noble Phantasm policy" would start to annoy him. She also has the ability Toole Fragarach: Gouging Great Sword of the War God (斬り抉る戦神の大剣, Kiri Eguru Senjin no Daiken?, Tūru Furagarakku) in Unlimited Codes that uses three successive strikes of Fragarach without its countering ability against the enemy.
After the attack is executed, the opponent's attack is dissipated as if it were being rewound, and the opponent is left in a state of mid-attack, such as with the light from Excalibur being canceled out and Saber still being left in mid-swing for the attack, when they are killed. It is only guaranteed to gouge the heart, so it may not immediately kill the enemy if they are a Servant like Lancer with Battle Continuation. Its natural enemy is "something that remains alive after it has been killed", such as enemies with auto-resurrecting Noble Phantasms or those with more than one life. The damage done by the attack is normally a small, minimum-sized fatal wound the size of a pebble that pierces the heart due to the focused energy of the laser. Against Lancer, it takes out a large chunk of his body between his heart and his left shoulder because she swung wide with the laser after Gae Bolg strikes her.[3] Against other abilities, it may often come down to a battle between two concepts. Fragarach, a curse that switches the order of attack, going against Gae Bolg, a cursed spear that reverses causality, causes both Bazett and Lancer to be killed. While the event of Gae Bolg being hurled first is rewritten, the curse of the spear just winds itself back. It had already pierced the heart the moment its name was chanted, so the user no longer needs to be alive for it to reach its target even if he is killed before he uses the attack. Against a curse where Bazett would die at the same time as the enemy, it would render Fragarach useless. It would create a causality conflict to say "Bazett fires Fragarach before she is killed by Fragarach."[4]
Fragarach is a short sword in Celt mythology belonging to the war god Lugh, which would launch from its sheath without its user having to touch it and cut down those who oppose it before they could draw their swords. It is one of the few remaining Noble Phantasms left in the world, and it is one of the few remaining relics not yet attached to a Heroic Spirit. It is a unique case as it is wielded by a living human as a Mystic Code. Maintained by the Fraga bloodline, the ability to use it has been passed down to a single successor from generation to generation through a pathogen in their bloodline, a Sorcery Trait known as Tradition Carrier or Gods Holder. Due to their faithful servitude shown to ancient deities since the Age of Gods, they were rewarded with the knowledge of mystic runes and rights over the use of Fragarach. It is created by pouring Bazett's blood on a ball of lead roughly the size of a track and field shot, conducting a ritual, and leaving it in the basement for one month. She can create around ten per year utilizing this method. She carries them around in a container that can hold up to five, and during Fate/hollow ataraxia, she only has three shots remaining. Before using it, she lets a metal ball float in a diagonal rear movement a few meters behind her in anticipation of the enemy's trump card, and once the attack has begun, the ball glows and begins to be electrically charged. It generates a blade followed by Bazett punching it towards the enemy for for the strike. After the attack, her glove and hand are burned as an aftereffect. The sphere, as a one-use weapon, loses its grey color as well. She has yet to completely master Fragarach, and once she does, she'd be able to have an even fight against a person of Ciel's level.[5]
Nasu: As has been speculated (by the editors), the battle would proceed with Caster winning overwhelmingly. As Caster doesn't have a trump card to use against Bazett, she's quite the difficult opponent for Bazett to handle. While lady Bazett is at times able to dodge, deflect, or nullify high thaumaturgy, she'd be fatigued before she could grab a chance at getting the upper hand. .....Oh and you see. Caster-san. She's merciless against mature women.
↑Q: Who'd win if the Servants and the 27 Ancestors fought each other? Also, who'd win in a fight between Bazett, a renowned powerhouse of the Association, and Ciel, top class in even the Association? Oh, and regarding Bazett-san and Lady Ciel, Ciel'd still win at the point Bazett was in Hollow. Once Bazett awakens and masters Fragarach, it'll turn into a good match.