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In my role as a game master, I traditionally shied away from significant use of chance during my D&D sessions. I tended was for narrative flow and session development to be shaped by deliberate decisions rather than pure luck. That said, I opted to try something different, and I'm truly glad I did.

The Inspiration: Watching a Custom Mechanic

A popular actual-play show features a DM who regularly calls for "fate rolls" from the adventurers. The process entails choosing a type of die and assigning consequences contingent on the result. While it's fundamentally no distinct from rolling on a random table, these are created spontaneously when a player's action doesn't have a obvious conclusion.

I opted to test this method at my own table, mostly because it seemed engaging and provided a break from my normal practice. The experience were eye-opening, prompting me to reconsider the often-debated dynamic between planning and spontaneity in a tabletop session.

An Emotional Session Moment

During one session, my players had just emerged from a massive fight. When the dust settled, a cleric character asked about two key NPCs—a pair—had made it. Rather than picking a fate, I let the dice decide. I asked the player to roll a d20. The stakes were: on a 1-4, both were killed; on a 5-9, a single one succumbed; a high roll, they both lived.

The player rolled a 4. This triggered a profoundly emotional scene where the characters found the bodies of their allies, still clasped together in death. The group held a ceremony, which was especially significant due to previous story developments. As a final reward, I chose that the remains were strangely transformed, showing a spell-storing object. I rolled for, the item's contained spell was exactly what the group needed to address another major story problem. You simply script such perfect story beats.

Improving On-the-Spot Skills

This event caused me to question if randomization and thinking on your feet are actually the core of tabletop RPGs. Even if you are a detail-oriented DM, your improvisation muscles need exercise. Adventurers reliably excel at ignoring the best constructed plans. Therefore, a good DM has to be able to pivot effectively and fabricate content on the fly.

Employing on-the-spot randomization is a fantastic way to train these skills without straying too much outside your preparation. The trick is to use them for minor circumstances that don't fundamentally change the session's primary direction. As an example, I would not employ it to determine if the main villain is a traitor. But, I would consider using it to determine whether the party enter a room just in time to see a key action occurs.

Strengthening Shared Narrative

Luck rolls also works to maintain tension and cultivate the sensation that the adventure is dynamic, evolving in reaction to their choices immediately. It reduces the sense that they are merely characters in a pre-written narrative, thereby enhancing the cooperative aspect of storytelling.

This philosophy has always been part of the core of D&D. Early editions were enamored with charts, which fit a playstyle focused on exploration. Although current D&D tends to emphasizes narrative and role-play, leading many DMs to feel they need exhaustive notes, that may not be the best approach.

Striking the Right Balance

It is perfectly nothing wrong with thorough preparation. But, there is also nothing wrong with letting go and letting the rolls to guide minor details in place of you. Authority is a big factor in a DM's job. We use it to facilitate play, yet we can be reluctant to give some up, in situations where doing so could be beneficial.

My final suggestion is this: Do not fear of relinquishing a bit of control. Experiment with a little improvisation for minor details. The result could create that the unexpected outcome is far more powerful than anything you could have planned by yourself.