Erosion

is a Mystic Code belonging to Blackmore Cemetery, having been given to them long ago by Morgan le Fay.
==Characteristics==
Erosion is a curved golden dagger. It looks considerably old, and some parts of the metal engravings have been damaged. Perhaps because it was cared for well, or maybe for some other reason, the gold shines as if proud to say it still retains its glory. It cuts through not only flesh, but also the spaces between the body, mind, and the soul.
It possesses the ability to separate the mind and soul from the flesh. It was intended to separate Gray's mind and soul from her body, allowing the spirit of King Arthur to inhabit her body in the final stages of the ritual. When used for sacrifices, Morgan was said to have used this dagger to direct the sacrifice's heart. According to legend it can also turn into a sword or a scythe.Lord El-Melloi II's Case Files Volume 7: case. Atlas Contract (Lower) - Chapter 3 part 2
==Role==
===Lord El-Melloi II's Case Files===
After spending years gaining the trust of the cult at Blackmore Cemetery, Gray's mother Magdalena was entrusted with Erosion by the cult leader, Grandmother. But unknown to the cult, rather than wanting to use Erosion to revive King Arthur Magdalena had concocted a plan to save Gray from that fate. She stabbed herself with a dagger so she began to slowly die, and then cut out her own soul and mind with Erosion. The Corpse King - a copy of King Arthur's mind created with Logos React - was then pulled into Magdalena's dying body and died as well.Lord El-Melloi II Case Files Volume 7: case. Atlas Contract (Lower) - Chapter 4 Part 2
When the Corpse King's death caused Logos React to malfunction, Gray used Erosion to separate the Corpse King's dead mind from the haywire Mystic Code.Lord El-Melloi II Case Files Volume 7: case. Atlas Contract (Lower) - Chapter 5 Part 3
===Unconfirmed appearances===
The following daggers are not explicitly identified as Erosion, but have similarities either in who owns them or in their appearance and abilities.
Lostbelt Morgan possesses an unidentified magecraft dagger which she used to kill Woodwose.The BAMBOO BROOM - Nasu blog entry 2021/7/28 - Translated by Comun
In the Fate/Grand Order - Absolute Demonic Front: Babylonia anime adaptation, Gilgamesh provides Ritsuka Fujimaru with an unidentified golden dagger from Gate of Babylon. Fujimaru stabs Tiamat with it which allows him to enter her mind.Fate/Grand Order - Absolute Demonic Front: Babylonia - Episode 20: Absolute Demonic Front Mesopotamia II
==References==
Category:Mystic Codes
Category:Knives
Category:Swords
Category:Scythes
Category:Terminology in Lord El-Melloi II
Category:Morgan le Fay (topic)