Estranged son of the evil mutant Mystique, Kurt Wagner was raised by a fortune teller and grew up as part of a travelling circus in Germany. Using his unique physique and agility, he performed as the star acrobat for years until finally attempting escape. During this escape, Nightcrawler teleported for the first time, an event that lead to him being rescued from an angry mob by Professor Charles Xavier, who came to recruit him into the X-Men.Marvel Source
From there, Nightcrawler became a mainstay of the X-Men’s various incarnations, as well as other teams such as Excalibur. He uses his teleportation, expert swashbuckling and superhuman agility to defeat enemies quickly, but maintains a light-hearted and positive attitude and serves as a moral anchor for the team.
Who is Nightcrawler? born to a demon, claiming to be the inspiration for Satan, Azazel, and the shape-shifting mutant terrorist, Mystique, Kurt Wagner was abandoned at birth, due to his demonic appearance, and raised highly religious by circus gypsies. Born with a unnatural level of gymnastic agility, and later gaining the ability to teleport, Kurt became a high wire wonder, until a violent mob drove him from the circus. Saved by Professor Charles Xavier, Kurt joined the X-Men and has been fighting for the peaceful coexistence of mutants and humans most of his life. (Taken from Nightcrawler Wiki Page) READ MORE HERE - http://marvel.wikia.com/Nightcrawler
What he does:
He uses teleportation, expert swashbuckling and superhuman agility to defeat his enemies quickly.
First Appearances
Giant-Size X-Men #1 May 1975
Created by: Len Wein and Dave Cockrum
Team Affiliations:
X-Men S.H.I.E.L.D (All Heroes)
Pros:
Good Damage
Very High Dodge
Very Quick
One of the best rushers
Amazing slot 5 unique
Fun abilities
Cons:
Bad slot 2 unique
Low Survivability
Hard to master
Must move ALL the time
Spirit spender