What is wonderlocke?

Wonderlocke is a variation of Nuzlocke challenge in Pokemon games, where players catch Pokemon only through trades on the Wonder Trade feature of the game. In this challenge, players choose their starter Pokemon as usual, but can only catch, use, and trade Pokemon received through Wonder Trade. They are also required to nickname their Pokemon and release any Pokemon that faints. The Wonderlocke challenge adds an extra layer of difficulty and unpredictability to the Nuzlocke challenge, as players have no control over the Pokemon they receive through Wonder Trade.