Im' recycling a character called Faith Ashdale. Her power is that her words, if they're in the form of commands, have a slight suggestive effect that gets stronger the more you trust her. So as a stranger she could let slip a "Don't worry" and you feel a little calmer. But she told her parents "forget about my ex" once and to this day they have no memory of his existence.

She'd likely join as an uncontrolled and make the lateral move to Hero.