Attila the Hun, known as Altera in the Fate/Grand Order universe, is a powerful Servant in the Saber class. In the series, she is depicted as a warrior of immense strength and a leader of the Huns, historically known for her conquests across Europe. In Fate/Grand Order, Attila's character combines her historical roots with mythological elements, presenting her as a formidable fighter with a complex personality. She plays a significant role in the story, challenging the protagonists with her martial prowess and strategic acumen, while also developing personal connections with them.