NORD Wandering Monster: Dungeon Deck (5E)
Dungeons And Dragons RPG Wandering Monster: Dungeon Deck - Rules of Play says:
This deck contains 52 cards, each with 3-5 possible encounters for dungeon environments for 5th Edition. The encounter can be chosen based on the appropriate challenge rating, or roll a die to leave the experience to chance. Save yourself hours of setup time and challenge your players with monsters you never thought to use!