Quentin Quire is an Omega-level telepath who is able to form and organize thoughts at an extremely high rate; his advanced cognitive and mental abilities allow him to organize and construct his thoughts at accelerated rates, process data at high speeds, construct and formulate his thoughts with vast quantity and quality, project ideas and impressions into the minds of others, disable existing psychic phenomena, and naturally shield him from psychic assaults simultaneously. He processes ten million high-level thoughts per second.

Quentin is also capable of displaying various psionic feats:
The ability to subtly use deep influence upon multiple people, allowing them to manipulate their perceptions, better judgment, wills and common sense.
His enhanced psionic senses enable him to detect and track other sentient beings by their unique psionic emanations (thought patterns contained in the psionic portion of the spectrum) especially if they pose a threat to his well-being in his immediate vicinity.
He can mask his presence from being detected by others. His abilities can at times go undetected or be counteracted by other more powerful telepaths depending on their level of skill in using their own psi abilities. He can extend these defenses to others around him as well.
He is capable of controlling the minds of others but only one at a time and if the target is in his physical presence.
He has the ability to create illusions to make himself seem to be invisible, look like someone else, or make others experience events that are not truly happening.
He has the ability to induce temporary mental or physical paralysis
He can erase any awareness of particular memories or cause total amnesia.
He can project psionic force bolts which have no physical effects but which can affect a victim's mind so as to cause the victim pain or unconsciousness.
He can project his astral form from his body onto astral planes or the physical planes. In the physical plane he can only travel in astral form over short distances. In the astral plane, he can mentally create psionic objects and manipulate the aspects of her environment.

His telekinesis allows him to levitate and manipulate objects and others, generate force fields, and fly at supersonic speeds

Quentin is destined to be an Avatar of the Phoenix Force, due to his Omega-level status.