T'Challa is the ruler of the African nation of Wakanda. The ruler also inherits the title of the Black Panther (although it still has to be earned). Wakanda is the main and only source of the metal Vibranium. The thought of outsiders exploiting Wakanda for it's valuable and rare metal, lead to Wakanda closing itself off. T'Challa traveled to the US to learn about other perceived threats to his homeland by joining the Avengers.
T'Challa, like other Black Panthers before him took a mystical herb that grants him Olympic level strength, speed, stamina, and agility and super human senses. This was due to a mystical connection to a Panther entity. Several times this connection was broken and the Black Panther lost his enhanced abilities. Besides his physical abilities, as the ruler of Wakanda, T'Challa has access to an enormous amount of resources; financial and technological. This outfit is made of a Vibranium mesh. Probably his most deadly asset is his mind. T'Challa is a genius that has a Ph.D from Oxford, as well as a skilled hunter, fighter, scientist, and strategist.
He first appeared in Fantastic Four #52 The new Mutants (July 1966), and was created by Stan "the man" Lee and Jack Kirby..
No need to cosplay as the following were done so well: