I was very excited to see the news post say that tournaments would include "customized rules" as I have always wanted to play some of the single-player challenges with other human players. But NOPE, the only customized rules options for tournaments are the same boring options as other multiplayer games so far:original, expansion, or mixed decks, and digital vs tabletop rules.
What a disappointing joke. Please fix by adding multiplayer options for all online games to try some of those modes. The one-leader-only and double-yellow-cards ones would be particularly interesting.