Champion's Trial is a two skin offer released for a limited time in December 2016. The skins in this offer could only be purchased with various packages of game items. They were not available for individual purchased. There may be limited opportunity to acquire these skins in the future.
Note: The Champion's Trial offer has been released many times after the initial 2017 debut. The last three limited time releases were in February 2022, May 2022 and then in August 2022. While the skins remained the same, the prices and included items varied occasionally between releases.
Details of this offer can vary depending on location, platform or time.