Because the higher-ups at Hasbro continue to blight me, I'm obligated to put at least some of the Stranger Things secret lair cards into the cube...

Akroan Hoplite > Chief Jim Hopper
Hull Breach > Max the Daredevil
Fleetfoot Panther > Mike the Dungeon Master
Voracious Hatchling > Will the Wise (Happy about this one, Hatchling was a bomb)
Coronavirus Godzilla > Mind Flayer

Lucas is a "maybe" and Dustin/Eleven are too narrow for my tastes as inclusions.