Artoria Pendragon (Alter Swimsuit Rider) in her Second Ascension is a corrupted, swimsuit-clad version of the King of Knights from the Fate series, known as black gunbab or Maid Alter (Rider). She embodies a ruthless side influenced by the Holy Grail's curse, dyeing her armor black and enhancing her magical power. Though her core ideals remain similar to the original Artoria—sincere, gentle, and chivalrous beneath the surface—this Alter form is more tyrannical, uncompromising in actions, and cool-headed. She covers vulnerabilities with knightly pride, showing a girlish side occasionally, but prioritizes duty over personal happiness.