Clark is a famed explorer, and champions the Trailblazer corp, a branch of the Cloud Dominion. He organizes expeditions and recruits talented individuals to shoulder the responsibilities of the corp from Windspire Cove, the headquarters and training grounds of the corp.
In order to join the Trailblazer corp, one must complete Clark's quest, proving their mettle as an explorer... as a trailblazer.