Rhone, 44, was hospitalized with deep cuts on her face, including one from her ear to the edge of her mouth. A police arrest report said Rhone also had several smaller cuts around her right eye.
Records show that Stokes was being held Thursday on $60,000 bail at the Clark County jail on felony battery with a weapon, burglary and mayhem charges that could get her decades in prison.
She told a judge Wednesday that she had not obtained a lawyer. She was due again in Las Vegas Justice Court on Friday.
The arrest report says casino video shows Stokes attacking Rhone before a casino patron and security officers intervene. Officer Marcus Martin said the video is evidence that may be shown by prosecutors in court but will not be made public by police.
Police said Stokes later told investigators that she attacked Rhone over harassing phone calls and an unspecified betrayal that ended their seven-year friendship.
Stokes also told police she visited her doctor last week, seeking to be admitted to a hospital "due to feeling like she wanted to hurt someone."
She is reported to have told investigators she hadn't taken a prescription anti-anxiety drug on Friday, and that, "Sometimes people just snap."