Verg Avesta

Verg Avesta is a wound-sharing primal curse, which is one of the simplest curses of retribution. It is a third-rate Noble Phantasm that even Avenger finds to be worthless. It causes any damage taken by user to also be dealt to the attacker by reflecting it directly on their soul. The ability causes no wounds to appear, but simply mirrors the pain associated with the wound onto the opponent. The damage will not heal until Avenger's wounds are healed or he succumbs to them. The weakness in the ability is that it not only requires Avenger to be wounded, but he must also be alive and conscious, as he must consciously activate the ability by chanting its name. It can only focus on a single target, and it is useless against high-level attacks. The damage is also generally not a great problem for a Servant level opponent, as they can still hold up, while Avenger, who is far below the level of an average Servant, will quickly die from such wounds. While not as useful as a scripture that returns twice the damage, the benefit of it is that while other damage returning curses would be reversed by those with a high resistance, such as Heroic Spirits, this curse will even work against someone with a high magic resistance like Saber. It is generally only a distraction or hindrance that works well in combat when paired with Bazett's Fragarach, which she uses after the opponent is damaged and forced to use their trump card.

It is a copy of the Book of Zoroaster, Avesta (アヴェスター): The Universal Revelation of Inscribed Creation (遍く示し記す万象). Avesta is a support-type book Noble Phantasm that records events accurately and correctly out of its own volition. Avenger describes it as being on the level of an automatic typewriter that is useless in a fight due to it being unable to harm anyone, while its only advantage is that it is able to put indescribable emotions and emotions one isn't aware of into words. It was used as the catalyst to summon Angra Mainyu in the Third Holy Grail War, but it instead summoned Avenger, a man who became Angra Mainyu, who had become free from "order" after having the records of his existence erased due to his name being removed from the book. Avenger initially lets Bazett believe that his Noble Phantasm is the cause of the four day loop of Fate/hollow ataraxia and his ability to resurrect. She believes the reason for his lack of strength in battle is due it being a weakness for having a Noble Phantasm that alters and interferes with destiny. He tells her that it has no cost due to emptiness being his nature, allowing him to resurrect in the evening as long as there is nothingness.

The alignment of being Angra Mainyu: All the World's Evil itself could also be said to be his Noble Phantasm. It is a curse that had put all of the evils in the world on one person, that who became Angra Mainyu. It is not a very useful ability, as it only grants the Servant's soul an alignment directed towards killing people even after when it takes on the form of directionless and alignmentless prana after losing the shell of its class. Normally it would not affect anything, but with the way the Great Grail is set up to take the Servant's souls means placing "All the World's Evil" into a wish granting machine. After Avenger is absorbed during the Third Holy Grail War, the Grail is transformed into an incarnation of Angra Mainyu that materializes as black mud and later a large humanoid under certain conditions. It can dissolve and absorb the flesh and soul of whoever comes into contact with it. Those who are not dissolved, will be assaulted mentally by "All the World's Evil", eventually going mad or left cursed by its after effects. Heroic Spirits that come into contact with it gain bodies of cursed flesh, and they are tainted by it as well. Gilgamesh's strong ego was enough to resist the majority of the effects.