Azoth Sword

Azoth.png|Azoth Sword
Azoth Blade.png| in Fate/Grand Order.
 is a Mystic Code used as a tool for performing magecraft, amplifying the user's magical energy to assist with spells and strengthen them. Filling it with magical energy allows for it to be utilized as a magic wand at any time to form magic circles and affect physical divine mysteries. While it is called a dagger, it is not meant to be a weapon used for slashing or stabbing in its ceremonial nature, but it can function as such to kill a person. It is one of the most commonly used Mystic Codes in the Mage's Association, and parents or teachers often present it as a gift to students at coming of age ceremonies. Using it to slay something like a Servant can cause it to crumble away instantly afterward.
Fate shirouvskotomine.jpg|Shirou activating the sword
Azothrelease.png|Magical energy surging from the sword
Shirou stabs Saber Alter with the Azoth Dagger.gif|Shirou stabs Saber Alter with the Azoth Sword.
The Azoth Sword given to Kirei Kotomine by Tokiomi Tohsaka was meticulously crafted from Tohsaka heirloom jewels, given to him for having practiced the family's magecraft. It is shorter than normal to fit his preference, and it has "AZOTH" carved into the jewel. Rin Tohsaka is later given the dagger, and though it is well-used, she uses it sparsely compared to her jewels because it is weaker than them. Its overall capacity is great, allowing her to fill it with ten of her strongest jewels to give it over one hundred times her normal capacity when attempting to use it as the base for the Jeweled Sword of Zelretch. She only occasionally instills it with magical energy under normal circumstances, and filling it with magical energy and using the word "läßt" will activate it for anyone. In the Fate scenario Shirou Emiya utilizes it by stabbing it into Kirei's chest, and then punching it after gathering his magical energy into his hand while calling the word of release. In the Heaven's Feel scenario, Shirou uses it to deal the last blow against Saber Alter. 
It appears in various anecdotes about Paracelsus von Hohenheim, the man who created the basis of modern alchemy in the early Renaissance period. It is said he carried the original with him at all times, described as a sword with a jewel set in the pommel with the word "Azoth" inscribed on it, though some sources identify it as a cane rather than a sword. It supposedly had a secret compartment in the hilt in which he stored a philosopher’s stone that allowed him to transmute lead into gold and cure any illness.
==References==
vi:Kiếm Azoth
Category:Mystic Codes
Category:Swords
Category:Terminology in Fate/stay night
Category:Terminology in Fate/Zero
Category:Terminology in Fate/Prototype
Category:Terminology in Fate/Grand Order