Cards in it will support the Crystal Beast, Gravekeeper, G Golem, and Gem-Knight archetypes, among others. In particular, you can pretty much assemble half of a Crystal Beast or Gem-Knight deck ...

The fifth Duelist Challenge involves the new Gem-Knight cards and getting over your opponent's three powerful monsters. Here's the step-by-step process to solving this quiz.

Shovel Knight: King Of Cards; Review ... been working on this extra content for the last few years instead of doing it on the side while they create their next gem, that would be a real shame.