Jean Grey manifested her mutant psychic abilities at an early age, and was subsequently sent to the Xavier School for Gifted Youngsters to learn control over her powers.Marvel Source
As a founding member of the X-Men, she's spent most of her life as a hero and has the calm confidence of a seasoned pro.
When Jean served as an avatar for the Phoenix Force, an immensely powerful entity of death and rebirth, her powers were greatly enhanced. Although she no longer operates on that scale, her telepathic and telekinetic abilities make her a formidable opponent.
High end gear focused on crit.
LL core or Lemuria.