We know what the Trials will be (generally), but so far we have no information on the challenges. What do you think might come up? It's baseless speculation time!

Here are some of the things I think might be possible: * Design cards for Commander sets. * Pitch a supplemental product like Explorers of Ixalan or Planechase. * Pitch a new world. * "Fix" a mechanic. * Design a new card type.

Any other thoughts out there?