Jean has been shown to having had a Phoenix predisposition before she became Phoenix in Uncanny 101.
Classic X-Men #42. An aspect of 12 year old Jean's mind manifests as the Phoenix and reaches out and touches Scott's mind in the orphanage.
X-Men Hidden Years #8, #9. The Phoenix Force takes notice of Marvel Girl's unlimited potential and Jean has a vision of herself becoming Phoenix but forgets the vision as it fades.
X-Men First Class vol 2, #8. Marvel Girl is teleported into her future self in a possible future where she has been reborn as Phoenix and has participated in the last mutant war. However, Jean is confused and doesn't understand what is going on.
Classic X-Men #42. An aspect of 12 year old Jean's mind manifests as the Phoenix and reaches out and touches Scott's mind in the orphanage.
X-Men Hidden Years #8, #9. The Phoenix Force takes notice of Marvel Girl's unlimited potential and Jean has a vision of herself becoming Phoenix but forgets the vision as it fades.
X-Men First Class vol 2, #8. Marvel Girl is teleported into her future self in a possible future where she has been reborn as Phoenix and has participated in the last mutant war. However, Jean is confused and doesn't understand what is going on.
