From Fate/Grand Order Wiki
|The brilliance of the farthest reaches of the world, she held in her hand.
Alteration began at that instant.
First was the flesh. And then the spirit.
Just before her complete transformation into “The Goddess of the Holy Lance,”
She chose. The King of the Storm chose to be herself.
Far from being herself as the King of Knights with the Holy Sword,
She became a presence with an unruly nature, yet—
Still, she could continue to exist as a human.
Rather than the Goddess of the Holy Lance.
She is Artoria Pendragon.
This exists as
A representation of a Heroic Spirit of the Holy Spear that did not become the Lion King.