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In my role as a Dungeon Master, I historically avoided heavy use of luck during my Dungeons & Dragons sessions. I preferred was for narrative flow and session development to be determined by player choice rather than random chance. Recently, I chose to try something different, and I'm truly glad I did.

The Spark: Watching a Custom Mechanic

A popular streamed game utilizes a DM who frequently calls for "luck rolls" from the players. This involves picking a polyhedral and outlining potential outcomes contingent on the number. It's at its core no unlike using a pre-generated chart, these get invented in the moment when a character's decision doesn't have a obvious resolution.

I opted to test this technique at my own table, mainly because it seemed interesting and offered a departure from my normal practice. The results were remarkable, prompting me to reflect on the often-debated tension between planning and randomization in a tabletop session.

An Emotional Story Beat

During one session, my party had survived a large-scale conflict. When the dust settled, a player inquired after two beloved NPCs—a pair—had survived. In place of picking a fate, I let the dice decide. I instructed the player to roll a d20. I defined the outcomes as: a low roll, both died; a middling roll, only one would die; on a 10+, they survived.

The die came up a 4. This triggered a deeply moving scene where the characters found the corpses of their allies, still united in their final moments. The cleric conducted last rites, which was especially significant due to prior story developments. As a final reward, I improvised that the forms were miraculously transformed, containing a spell-storing object. By chance, the item's contained spell was perfectly what the group needed to resolve another critical story problem. It's impossible to plan these kinds of serendipitous coincidences.

Honing DM Agility

This experience made me wonder if improvisation and thinking on your feet are in fact the beating heart of D&D. Although you are a detail-oriented DM, your improvisation muscles can rust. Players reliably take delight in upending the most detailed plots. Therefore, a skilled DM needs to be able to pivot effectively and fabricate scenarios in real-time.

Utilizing on-the-spot randomization is a fantastic way to develop these talents without straying too much outside your preparation. The strategy is to deploy them for low-stakes decisions that have a limited impact on the campaign's main plot. As an example, I would avoid using it to establish if the king's advisor is a secret enemy. Instead, I could use it to figure out if the PCs enter a room right after a key action unfolds.

Enhancing Player Agency

This technique also helps keep players engaged and foster the sensation that the story is alive, progressing based on their actions in real-time. It reduces the perception that they are merely pawns in a rigidly planned story, thereby enhancing the collaborative nature of the game.

Randomization has long been part of the core of D&D. Early editions were reliant on encounter generators, which fit a playstyle focused on exploration. Although current D&D frequently prioritizes narrative and role-play, leading many DMs to feel they require detailed plans, that may not be the required method.

Achieving the Healthy Equilibrium

It is perfectly no problem with doing your prep. However, there is also no problem with relinquishing control and allowing the dice to guide minor details instead of you. Control is a big part of a DM's job. We use it to run the game, yet we can be reluctant to give some up, even when doing so might improve the game.

My final suggestion is this: Don't be afraid of letting go of control. Experiment with a little randomness for smaller details. It may create that the surprising result is significantly more rewarding than anything you might have planned on your own.