Originally posted by Now And Forever
Jean Grey-Summers is an Omega-level mutant, the physical embodiment of the vastly powerful Phoenix Force who possesses god-like powers and is one of the most powerful mutants and beings that ever lived. Without the Phoenix, Jean has potentially limitless psionic powers of telepathy, telekinesis, and energy manipulation - Henry McCoy has said that, based on her massive power levels, "on the Richter scale, she'd be a 12". When bonded to the Phoenix, she is said to outclass mutants, granting her complete control over matter, energy, thought, and unlimited psionic energies. She can tap into reserved energies for future generations, denying them of existence, as well as tap into limitless cosmic power. When Jean became Dark Phoenix, she could telekinetically manipulate matter at sub-atomic levels and wield any form of energy at magnitudes mitigated only by her imagination and the strength of her will to utilize them. Jean also possesses the power of flight through her telekinesis without the Phoenix.
When her powers first manifest, Jean is unable to cope with her telepathy, forcing Professor X to suppress her access to it altogether. Instead, he chooses to train her in the use of her telekinesis while allowing her telepathy to grow at its natural rate before reintroducing it. This is why in Jean's debut appearance as Marvel Girl, she is only capable of using her telekinetic powers. When the Professor hides to prepare for the Z'Nox, he reopens Jean's telepathic powers, which was initially explained as Xavier 'sharing' some of his telepathy with her.
Jean is considered to be one of the Earth's most powerful telepathic minds. Jean Grey, as the Phoenix, has limitless telepathic powers, able to influence any individual. Jean's telepathy allows her to communicate with others telepathically, read the thoughts of others, influence and control the minds of others, project her mind into the astral plane, and generate telepathic force blasts that can stun or kill others. Jean is one of the few telepaths skilled enough to communicate with animals (animals with high intelligence, such as dolphins,dogs, and ravens). She can also telepathically take away people's natural bodily functions and senses, such as sight, hearing, smell, taste, or even mutant powers. A side effect of her telepathy is that she is gifted with total recall - she remembers everything.
Her telekinetic strength and skill are both of an extremely high level, capable of grasping objects in Earth orbit and manipulating hundreds of components in mid-air in complex patterns. She can telekinetically lift several tons of matter at once, and has learned to use her power both aggressively and defensively, as blasts of focused telekinetic force or defensive shields strong enough to withstand out of scale ballistic impacts. She has also been shown to manifest a fiery aura offensively by using her telekinetic powers to excite the air molecules around her into focused combustion that produce heat and light in her immediate area. When Jean absorbs Psylocke's specialized telepathic powers, her own telepathy is increased to the point that she can physically manifest her telepathy as a psionic firebird whose claws can inflict both physical and mental damage. Jean can use her amplified telepathy to increase temporarily the speed of neural signals in the brain, which allows her to boost a mutant's powers to incredible levels. She briefly develops a psychic shadow form like Psylocke's, with a gold Phoenix emblem over her eye instead of the Crimson Dawn mark possessed by Psylocke.
The Phoenix can revive, absorb, re-channel, and preserve the life-force of any kind of life-form, meaning that she can take life energy from one person and give it to others, heal herself with the same life energy, or even resurrect the dead, since the Phoenix is the sum of all life and death. As Phoenix, Jean's powers escalate to an incalculable level: allowing her to rearrange matter at a subatomic level, fly unaided through space, survive in any atmosphere, and generate massive destructive blasts and atmospheric disturbances. She manifests a "telekinetic sensitivity" (called "the Manifestation of the Phoenix"
to objects in her immediate environment that lets her feel the texture of objects, their molecular patterns, feel when other objects come into contact with them, and probe them at a molecular level. When she engages her Phoenix powers, Jean is surrounded in a flame-like energy corona that takes the form of a large bird of prey. As the Phoenix, Jean can resurrect herself after death and is unaffected by the passage of time. It should be noted that she isn't "borrowing" the powers of the Phoenix Force (as is perceived by some due to the fact that Jean was a host for the Force); Death itself has said that Jean is the rightful owner of those powers. After further evolution allowed her to actually become one with the Phoenix Force (as opposed to serving as its host) due to her status as an Omega-level mutant with unlimited potential, it was revealed that Jean was the White Phoenix of the Crown. As the White Phoenix of the Crown, Jean's powers are further enhanced to the point where she can manipulate and control entire timelines, as seen when she brought the Here Comes Tomorrow alternate timeline into the White-Hot Room.
{taken from Wikipedia}
Thanks for the ENTIRE description
