First up we have Secret Lair x Tomb Raider, a Universes Beyond Secret Lair that includes five existing cards with new art and names, and one mechanically unique Lara, Croft Tomb Raider, who can steal legendary lands and artifacts from your own and other people's graveyards
The worst-case scenario of some mom buying this for their kid at Walmart, the kid opening it, not understanding what it is, and it getting lost at the bottom of the toybox (cue "and some things that should not have been forgotten were lost") is not that outlandish
Many people have Pokmon cards, probably stuffed in a box somewhere, or maybe you came across some
And each Ravnica: Clue Edition comes with a Clue-themed Box Topper shock land
The upkeep cost of just one blue mana is trivial to pay