From wikipedia......
THE FLASH:
(Powers and Abilities)
Barry Allen is capable of running faster than the speed of light and, at times during the Silver Age, described as faster than the speed of thought. In Flash #150, "straining every muscle," he ran at ten times the speed of light. However, when he pushed himself further (during the Crisis on Infinite Earths) he appeared to waste away as he was converted into pure energy, traveled back in time, and was revealed in Secret Origins Annual #2 to be the very bolt of lightning that gave him his powers. This was later retconned in The Flash: Rebirth #1, where Barry stated that he "ran into the Speed Force," and that, "When [he] stopped the Anti-Monitor, when [he] ran into the 'Speed Force' and joined it, it was like shedding [his] identity."
Barry Allen possesses abilities that Jay Garrick has not always been able to duplicate, most notably the ability to "vibrate" in such a way as to pass through solid matter. Allen has regularly engaged in time travel using the Cosmic Treadmill device (he no longer needs this to conduct this feat), and is able to "vibrate" between dimensions. Barry is unique among Flashes and most characters in the DC Universe in that he has complete control over every molecule in his body. In Grant Morrison's Final Crisis, using the Speed Force, Allen was able to undo the effects of the Anti-Life Equation upon an individual: an ability he used on his wife Iris to free her from the bondage of Darkseid's mind control. He has recently been revealed to not only be connected to the Speed Force, but is the very source of it, generating it with every step he takes. As such, he presumably has some of the Speed Force-related abilities other speedsters have demonstrated (such as lending and stealing speed), though he has yet to demonstrate such abilities. This alone is enough to make him one of the most powerful beings on Earth, and perhaps in existence. He is also immune to telepathic attacks and control, as he can shift his thoughts at a speed faster than normal thought. He used this tactic against Black Lantern Martian Manhunter in Blackest Night. Through "speed-reading" Barry can absorb large amounts of information into his short-term memory, which remain in his mind just long enough for him to make use of it. Using this technique, Barry was able to learn enough about building work to rebuild a destroyed apartment building.
NIGHTCRAWLER:
(Powers and Abilities)
Kurt Wagner is a mutant whose primary mutant power is the ability to teleport himself, his clothing, and a certain amount of additional mass from one point to another virtually instantaneously. He does this by means of displacing himself through an alternate dimension briefly and reappearing in a desired location. He has been shown to be able to teleport distances of up to two miles (3 km) under optimal conditions, although it is at his extreme limit, and he can become severely fatigued if he tries to teleport that distance (in one case, however, he teleports somewhere over 50 miles (80 km)). In a final, dying effort to rescue the mutant messiah Hope, he manages to teleport them both from Las Vegas, Nevada to the mutant safehold Utopia, just off the coast of San Francisco, a roughly 413 miles (665 km) distance. Nightcrawler's teleportation ability is also affected by direction — north-south along Earth's "magnetic lines of force" is easier than east-west against them.
He possesses a limited unconscious extrasensory "spatial awareness" ability which prevents him from teleporting into solid objects within his immediate vicinity, but this ability diminishes the greater the distance he teleports. Because teleporting into other solid matter would cause severe injury or death, he will only teleport to an area he is familiar with or that he can clearly see at the time or has seen in the past. His power automatically displaces liquids and gases when he "arrives".
The process of teleportation places a strain on his endurance and that of any passengers; carrying mass other than his body and clothing when teleporting adds additional strain through his body. Through practice he has been able to teleport a passenger over a lengthy distance with himself without exhausting himself, but the strain on his body grows as the amount of mass he transports and the distance over which he teleports it increase. Extensive training has raised his tolerance for teleportation, but most of his passengers lack this tolerance. Therefore, one of his tactics is to grab opponents and make several quick teleportations with them. They usually are weakened or even pass out from the strain.
After Nightcrawler teleports, he leaves behind smoke and a faint scent of burning brimstone; this is a small portion of the atmosphere of the dimension he travels through when he teleports. His teleportation power is due to a biophysical/biochemical reaction he consciously triggers within himself. A loud "bamf" noise is always present whenever he teleports (being the sound of air rushing to fill the space he was just occupying). His teleporting also causes a slight change in the atmosphere before he arrives, although only superhumans with heightened senses such as Daredevil can register it.
In addition to his primary power of teleportation, Nightcrawler's physiology is unique in several different ways. His agility far surpasses that of an Olympic level gymnast, and his bone structure allows him great flexibility. His spine is more flexible than an ordinary human, enabling him to remain in a crouched position for a long time and perform contortionist-type feats without causing any damage to his spine. Nightcrawler's agility, balance, bodily coordination, and flexibility are all enhanced to superhuman levels. He has an ability to cling to surfaces with his hands and feet in a manner similar to Spider-Man. He also possesses superhuman dexterity, being able to manipulate items and fence with either hand, both feet, and his tail.
He has the ability to blend into shadows, both as a result of his indigo fur and his connection to the dimension through which he teleports (which allows him to cancel out the photons around him). At one point shortly after his initial introduction, it was suggested that he could actually travel through shadows (in much the same way Psylocke did after exposure to the Crimson Dawn) and this was shown in Bizarre Adventures, but never really touched upon after that. In the story, Vanisher removes some of the Darkforce that formed his costume and threw it at Kurt, who disappeared. He then reappeared from within the Darkforce on the ground, saying that it was like "a pool of shadow" and that he "fell right through it." His abilities have interacted with Vanisher's on other occasions, such as when the two found themselves transported to various alternate dimensions.
Nightcrawler has a prehensile tail, allowing him to grab onto objects with relative ease. His tail is strong enough to not only support his body weight, but also lift an adult man completely off the ground at the same time, and is deft enough to fight with while holding a sword or blunt object. Nightcrawler's eyes (which are constantly glowing) grant him a marked degree of heightened night vision, along with his other heightened senses.
Aside from the abilities granted by his mutation, Nightcrawler is a superb fencer and a very skilled hand-to-hand combatant, to the point of being able to stalemate super-beings as powerful as Captain Britain. He has also served as the team's pilot and medic when more qualified X-Men were not around to do so. He and Wolverine were also the mechanics of the X-Men's Blackbird jet for a long time. He is also recognized by other Marvel characters as the leading authority on teleportation, with Spider-Man and Daredevil contacting him for information and advice following their first encounter with Francis Klum.
For a long period, Kurt's body housed the Soulsword. Magik states that Kurt is attuned to magic and thus able to wield her Soulsword and Pixie's Souldagger.