As a clone of Wolverine, X-23 possesses most of his mutant powers. She has been classified as a severe threat by both the O*N*E and Nimrod.
Superhumanly Acute Senses
X-23 possesses superhumanly acute senses that are comparable to those of certain animals. She is capable of seeing at much greater distances, and with perfect clarity, than an ordinary human. She retains this same level of clarity in near-total darkness. Her sense of hearing is enhanced in a similar manner, allowing her to both hear sounds that ordinary humans can't and to hear sounds that ordinary humans can, but at much greater distances. X-23 is able to use her highly developed sense of smell to track targets by scent with an impressive degree of success, even if the scent has been eroded by natural factors, such as the weather.
X-23's skeleton includes two retractable bone claws in each arm and one in each foot that she can extend and retract at will. These claws are housed beneath the skin and muscle. Unsheathing them causes her skin to tear and bleed, but the wounds are quickly dealt with by her healing factor. X-23 can unsheathe any number of these claws at once, although she must keep her wrists and/or feet straight at the moment the claws emerge. The claws are naturally sharp and tougher than normal human bone, allowing X-23 to cut through most types of flesh and natural materials.
Regenerative Healing Factor
Like Wolverine, X-23's primary mutant power is an accelerated healing factor that enables her to regenerate damaged or destroyed tissue with far greater speed and efficiency than an ordinary human. She is capable of fully healing injuries resulting in massive tissue damage and blood loss such as multiple bullet wounds, slash wounds, and puncture wounds within a matter of minutes. Her healing factor is developed to such a degree, she is capable of reattaching severed limbs, such as a hand. She has also proven capable of regrowing an entire arm on her own (Elixir was incapacitated at the time). Her healing factor may fluctuate with her psychological state as battle wounds tend to heal very quickly, but her self inflicted cuts appear to remain visible for some time.
Foreign Chemical Immunity
X-23's natural healing also affords her the virtual immunity to poisons and most drugs. She can be affected by some drugs, such as tranquilizers, if she is exposed to a massive dose.
Due to her highly efficient immune system, X-23 is immune to all Earthly diseases and infections.
X-23's muscles produce considerably less fatigue toxins during physical activity than the muscles of an ordinary human. She can exert herself at peak capacity for about 24 hours before fatigue begins to impair her.
X-23's agility, balance, and bodily coordination are enhanced to levels that are beyond the natural physical limits of even the finest human athlete.
X-23's reflexes are enhanced to levels that are beyond the natural physical limits of the finest human athlete. In at least one case she reacts to and slices in half with her claws a bullet fired at her face from nearly point-blank range.
She was capable of fighting the Hulk without sustaining any severe injuries and surviving energy blasts from Nimrod (even if she required healing and nearly died).
Presumably, because X-23 is a clone of the mutant Wolverine, her healing factor will also provide her with an extended lifespan by slowing the effects of the aging process.
Expert Covert Ops Training
Raised in captivity, due to her extensive training as a top-secret operative, X-23 has been trained to become a living weapon. She is highly trained in the use of long range weapons and explosives, and is an expert in assassination techniques.
Due to her enhanced sense of smell, Laura is a dangerous tracker and has memorized many different scents.
Master Martial Artist
She is a master in hand to hand combatant, with intensive training in numerous armed and unarmed martial arts techniques during her time in the facility.
She is an Olympic class athlete, gymnast, acrobat and aerialist capable of numerous complex maneuvers and feats.
Laura can speak fluent English, French, and Japanese. She might be able to speak other languages.
She possesses the ability to quickly process multiple information streams (e.g., threat assessment) and rapidly respond to changing tactical situations.