Failnaught

is the Noble Phantasm of Tristan.
Tristan shooting at Mash.gif|Tristan shooting his arrows at Ritsuka, Bedivere and Mash.
Tristan using Failnaught to deflect dirks.gif|Tristan using Failnaught to deflect multiple Dirks and break his restraints.
Tristan’s bow was called a “bow that always hit its target”… but the form of this Noble Phantasm is nothing but a mere “string”. He used the string of his favorite harp, and he flicks off the air by shaking this string, firing what should be called a vacuum arrow. Because the velocity of the arrow, the bow’s angle adjustments, and above all, the loading speed of its arrows are all unusual, it is almost impossible to avoid the entire bullet, no matter how fast the hero is that excels in speed. It seems that the only ways for one to oppose this is by jumping dimensions, move one’s body outside of its range, and so forth.Fate/Grand Order material IV - Tristan, p.110-121, translated by Clyton at Beast's Lair.
For the different ways to use this string, Tristan can take up tactics such as tearing up, slicing up and tying down the opponent. Furthermore, if there is a location that is an obstacle, such as a forest, etc., he can insert traps like “foot entanglements (snares)”, and so forth. The instant a foot takes one step onto the mysterious vacuum trap that was laying there, the enemy floats into midair and is chopped up into pieces. How scary.
Due to being imbued with Tristan's Saint Graph, Fairy Knight Tristan uses the bow Failnaught as her weapon, though hers is a little smaller and more sinister-looking.
==Variations==
===Fetch Failnaught===
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 is the Noble Phantasm of Baobhan Sith.
The of a demon that curses its target to death without fail with no regard for distance. It creates a double of the enemy from their flesh (hair, nail, etc.) and by killing this double, the enemy is cursed to death. It is similar to a fairy version of the ritual.
Also, is a type of doppelgänger in Scotland. It is a Magecraft taught to her by Beryl Gut.Fate/Grand Order: Cosmos in the Lostbelt - Fae Round Table Domain: Avalon le Fae - Section 7: Fragment 4/Sheffield (II) However it is detrimental to the the user, as it rots their soul with each use.Fate/Grand Order: Cosmos in the Lostbelt - Fae Round Table Domain: Avalon le Fae, Section 21: Lost Will
The Noble Phantasm's Japanese name is an anagram of the Japanese name of Tristan's version, rearranging the same four kanji into a different phrase.
==References==
vi:Failnaught
Category:Noble Phantasms
Category:Anti-Army Noble Phantasms
Category:A rank Noble Phantasms
Category:A+ rank Noble Phantasms
Category:Bow and arrows
Category:Noble Phantasms introduced in Fate/Grand Order
Category:Noble Phantasms of the Round Table‎‎