Alf Layla wa-Layla

is the Noble Phantasm of Scheherazade. From its origin, it possesses a special attack against those with the King attribute. Even if they are not strictly a King, as long as they are of a similar existence, there are cases where they would be deemed equivalent to what she regards as a "King".Fate/Grand Order Profile of Scheherazade, translated by roadromancer at Reddit.
This is a Reality Marble that is said to be defined by "her narrated tales". From the World's belief of the impressive and realistic narrations that overwhelms its sense of reality and existence, that "tale" is able to materialize. It summons and gives form to characters, tools, spirits, and so forth that appeared within . Episodes of , and so forth that were produced in posterity and absorbed into these set of tales, which did not originally exist in the (historically justified) One Thousand and One Nights, are able to be used given that it will be helpful to her existence as a Heroic Spirit. What's most important is not their validity. It is whether the King can be entertained or not. Naturally, at the end of the tale (Noble Phantasm), it can be concluded like this: "―――and such, was this story."
With Scheherazade being supported by Phenex, Alf Layla wa-Layla was capable of creating the Agartha Singularity, an encroachment of fiction onto reality.Fate/Grand Order - Agartha: The Mythical Subterranean Society, Chapter 15
==References==
Category:Noble Phantasms
Category:EX rank Noble Phantasms
Category:Reality Marbles
Category:Anti-King Noble Phantasms
Category:Noble Phantasms introduced in Fate/Grand Order
Category:Summon Noble Phantasms