Arturia was about to let off a loud string of shocked curses when she was grabbed from behind, and then whispered to in a way that someone other than herself might find seductive, causing her to get halfway through the first curse before it turned into a sort of strangled, unintelligible angry noise. Her emotions ran through virtually every negative one could think of; rage, shock, fear, horror, disgust, and the sudden urge to throw an elbow in the general direction of the girl speaking to her's gut. Her already pale complexion was rapidly approaching a shade resembling a sheet of paper at the sight in front of her, though some color returned to it as the girl took the liberty of biting her goddamn ear like they were sleeping together, causing more than a little revulsion.
After a moment that felt like an eternity, she regained her composure enough to sort through a rapid series of thoughts. Natalie just stabbed Haley. She did it with a sword made of ice that came from nowhere. This is like a fantasy novel, or something, what the hell? This creepy chick just told me I could save her. If there's magical shit going on here and I'm not just hallucinating all of this because of some sort of mental break, she might actually be telling the truth. If she's telling the truth, then it's worth a try.
Instead of performing some sort of physical violence upon Riley, she simply jerked away reflexively, and spoke. "Alright, whatever, this is fucking insane but you get what you want." She spoke rapidfire, trying to get the entire chant out as quickly as possible before Haley passed away or Natalie decided that she wanted Arturia to decorate the floors with too.
"By the light of your heart,
By the strength of my trust,
With the raging fury of the believers,
And for the salvation of all humanity,
Bestow upon me your strength,
That I might bring light to the world."
As she finished the last line, the girl felt a strange sensation as power started to surge through her, starting at her toes and moving upward. A shimmering effect started their and moved upward, first replacing her shoes with boots made of a silvery-white metal, coming to slight points after the toes and protecting her shins. As the sparks moved upward, they replaced her jeans with pristine white leggings, and a somewhat short skirt with three layers that briefly appeared to attach to nothing at all. The violet bottom layer appeared first, succeeded by an orange layer and a white one. It extended upward into a white dress, this coming with a chestplate that matched the boots. The sleeves of her shirt were replaced by a set of similar bracers, these with orange bands around each end, and her now-exposed arms were covered with a large number of seemingly random triangular patterns consisting of two lines, along with her normally unpainted nails being violet. The short sleeves of the dress that now covered her were also banded with orange on the ends. As the transformation reached her shoulders, a cape appeared and extended downward to just past the backs of her kness; this a deep violet, with an orange band running halfway back up it with fringe to match this.