Decks are designed for different play styles, so they may want to match one to the type of game they prefer to play, or try something entirely different and go with the opposite of their norm
These free printables are great for any preschooler or kindergartener
Then on your end step you untap anything you control with a counter on it, so that's a good reason to toss it on your stuff or other counters too like +1/+1 counters
You could also argue the first ones would then be from Double Crisis, but Id argue those are just regular arts, albeit on the same level of cool art as CHRs
"In the sleepy town of Arkham, Massachusetts, a small band of intrepid investigators seeks to uncover the nature of a sinister menace that threatens humanity
When Fblthp becomes the target of a spell, shuffle Fblthp into its owner's library