Also known as: アルトリア・オルタ(水着), メイド・オルタ, メイドオルタ
Saber Alter in her Swimsuit Rider Third Ascension outfit from Fate/Grand Order. This isn't much of a swimsuit, but more of a formal party dress. She wears a black tiara, a black frilled choker, a black coat over her shoulders, a navy blue dress with multiple diamond-shaped cutouts, black gloves, black thighhighs, and navy blue high heels. She regains Excalibur Morgan (Fate) as her close-range weapon, and swaps out her water gun pistol for a water gun rifle.