Gilgamesh - World Breaker

Though it was called Ea, this was merely a nickname of convenience he had given it.

In fact, it might not even be a sword at all.

After all, this was something that had existed long before swords and spears had appeared in history.

It hailed from an era more ancient than humans, older than even the planet itself.

It was a rarity among rarities, a pure manifestation of the power wielded by gods to enact Genesis.

It was the beginning of all on this planet. It was that which clove apart Heaven and Earth.

It rent the void and created the sky, then pierced the sky and returned it to the void.

This power symbolized the Beginning and the End, and only Gilgamesh, who inherited the essence of the gods, was permitted to wield it.

Therefore, when Gilgamesh swung the sword with all his might, it was defined as...

Anti-world Noble Phantasm.

Offensive Noble Phantasms were classified into tiers such as anti-personnel, anti-army, anti-fortress, and so forth. In many cases, an anti-personnel Noble Phantasm was more appropriate to a one-on-one battle between Heroic Spirits than an anti-army or anti-fortress Noble Phantasm. But when it came to the sheer power of an anti-world Noble Phantasm, considerations such as compatibility and applicability went out the window. It was absolute power — the power to destroy the World itself. Regardless of whether the opponent was an individual or a group, it simply broke down the world they existed in.

Such was the attack which Gilgamesh unleashed with all of his strength.

***

Fate/Strange Fake, Volume 1, Chapter 1