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In my role as a DM, I historically avoided extensive use of randomization during my Dungeons & Dragons sessions. My preference was for the plot and what happened in a game to be shaped by deliberate decisions instead of random chance. However, I opted to alter my method, and I'm very happy with the result.

The Inspiration: Observing a Custom Mechanic

A popular actual-play show utilizes a DM who frequently calls for "luck rolls" from the players. He does this by choosing a specific dice and outlining consequences contingent on the result. This is fundamentally no distinct from using a random table, these are created in the moment when a course of events has no obvious outcome.

I decided to try this method at my own table, mostly because it looked novel and provided a break from my usual habits. The results were fantastic, prompting me to reflect on the ongoing balance between planning and improvisation in a roleplaying game.

A Powerful Story Beat

At a session, my party had just emerged from a large-scale conflict. When the dust settled, a player asked about two beloved NPCs—a pair—had made it. Rather than deciding myself, I handed it over to chance. I asked the player to roll a d20. I defined the outcomes as: on a 1-4, both died; a middling roll, only one succumbed; a high roll, they both lived.

The die came up a 4. This triggered a incredibly emotional scene where the characters came upon the bodies of their allies, still clasped together in their final moments. The party held funeral rites, which was especially significant due to earlier story developments. As a final touch, I improvised that the forms were miraculously restored, revealing a spell-storing object. I randomized, the bead's contained spell was precisely what the party lacked to resolve another pressing situation. It's impossible to script these kinds of magical story beats.

Improving On-the-Spot Skills

This incident made me wonder if improvisation and thinking on your feet are in fact the essence of D&D. Although you are a prep-heavy DM, your skill to pivot need exercise. Players reliably find joy in derailing the best constructed narratives. Therefore, a skilled DM needs to be able to adapt swiftly and create content in the moment.

Using luck rolls is a fantastic way to practice these abilities without going completely outside your usual style. The key is to deploy them for small-scale decisions that don't fundamentally change the campaign's main plot. To illustrate, I would not employ it to determine if the king's advisor is a secret enemy. However, I could use it to figure out if the characters reach a location just in time to see a key action takes place.

Enhancing Collaborative Storytelling

Luck rolls also helps keep players engaged and foster the impression that the adventure is dynamic, shaping according to their actions as they play. It reduces the perception that they are merely characters in a DM's sole story, thereby enhancing the shared aspect of storytelling.

This philosophy has always been part of the game's DNA. Early editions were reliant on encounter generators, which made sense for a playstyle focused on exploration. While current D&D tends to focuses on narrative and role-play, leading many DMs to feel they must prep extensively, this isn't always the required method.

Achieving the Sweet Spot

There is absolutely no problem with doing your prep. But, there is also nothing wrong with relinquishing control and allowing the rolls to guide minor details instead of you. Authority is a major aspect of a DM's job. We require it to manage the world, yet we frequently find it hard to give some up, even when doing so might improve the game.

My final advice is this: Have no fear of relinquishing a bit of the reins. Try a little chance for minor outcomes. The result could find that the surprising result is infinitely more memorable than anything you might have scripted on your own.