40 items
Random encounter tables are a dungeon master's oldest tool, and a drawn monster beats a planned one because it forces you to justify why it is here. Forty creatures from the tradition, spanning the trivial to the campaign-ending, which means a draw can be a speed bump or a disaster. Prep-light tables keep this open during play. The mimic remains the single best argument for describing furniture carefully, and a beholder will reorganise your entire session.
All 40 entries that will load into your picker
More from Gaming, and a couple from elsewhere