Kobold Alley is a tournament where the members gamble their very souls for the chance for greater power. To keep the pool fresh deluxe circle of members are allowed to sponsor less powerful beings.
When its time for matches contestants are teleported to a prepared area play there game of choice. If a person is without sponsorship this can happen outside the gamblers control.
However with great risk comes great reward. When Ket beat the Raven Queen in a game he became part god, while at the same time changing the very nature of the Raven Queen.
Episode 112: The Grand Tour of the Gulag Magnificent (S3-046)
Episode 130: Kobold Alley (S3-062)
Episode 248: Mystery of Blood (S4-094)