In 2367, this con artist learned of Ardra and the lore surrounding her return. The impostor revealed herself to the Ventaxians, fooling them into believing that she was their deity, by using technology to mimic various phenomena believed to herald Ardra's return. When Captain Jean-Luc Picard came to the planet to help Acost Jared, the Ventaxian leader, Ardra suddenly appeared before them.
Back on board the USS Enterprise-D, the senior staff discussed who or what Ardra was, even suggesting that she was Q, or another member of the Q Continuum, but Picard concluded that neither Q nor another member of the Continuum would ever bother with contracts.
Having found Picard attractive during her initial contact with him, due to his "forceful" presence, Ardra later materialized in Picard's quarters and tried to seduce him in order to stop the investigation. When he refused her initial advances, she changed into a more Victorian appearance, to what she described as Picard's "ideal woman... prim and proper and chaste, until I succumb to your charms," then quickly assumed Deanna Troi's form to tempt him, with a "professional woman, perhaps one in a Starfleet uniform," but when that too failed, she beamed him down to Ventax in his pajamas, disabled the transporters, and then made the Enterprise-D appear to "vanish."
During a court case Ardra continued to use her "powers" to prove to the court that she was indeed "real", while Picard focused on disproving her existence and role in events, by pointing out that all of the changes on Ventax were gradual, natural changes, with no indication that 'Ardra' had so much as picked up a single piece of rubbish while Ventax was rebuilding its civilization.
During the trial, Picard revealed the source of Ardra's "powers" to be the result of "a prearranged program on her ship's computer: a fairly ingenious combination of force field projection, holography, and transporter effects," adding "Ardra controls her magic literally by the blink of an eye, centuries old technology – an implant that allows her eye movements to choose and activate each illusion."