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As a DM, I usually steered clear of extensive use of luck during my D&D games. I tended was for narrative flow and what happened in a game to be guided by deliberate decisions as opposed to random chance. However, I opted to change my approach, and I'm incredibly happy with the result.

The Spark: Observing a Custom Mechanic

A popular streamed game showcases a DM who frequently asks for "chance rolls" from the adventurers. The process entails choosing a type of die and defining possible results based on the number. While it's fundamentally no distinct from rolling on a pre-generated chart, these are devised spontaneously when a player's action doesn't have a obvious outcome.

I opted to test this approach at my own table, mainly because it appeared novel and offered a change from my standard routine. The experience were fantastic, prompting me to think deeply about the perennial tension between preparation and randomization in a tabletop session.

A Memorable Session Moment

In a recent session, my party had just emerged from a massive battle. Afterwards, a player asked about two friendly NPCs—a pair—had made it. In place of deciding myself, I asked for a roll. I told the player to make a twenty-sided die roll. The possible results were: on a 1-4, both died; on a 5-9, a single one succumbed; on a 10+, they survived.

The player rolled a 4. This led to a incredibly moving sequence where the characters found the corpses of their friends, still holding hands in their final moments. The cleric performed last rites, which was especially meaningful due to prior roleplaying. As a final reward, I chose that the forms were miraculously transformed, revealing a magical Prayer Bead. I rolled for, the bead's contained spell was perfectly what the group needed to solve another critical story problem. It's impossible to script these kinds of magical moments.

Sharpening On-the-Spot Skills

This experience made me wonder if randomization and thinking on your feet are actually the core of this game. Even if you are a detail-oriented DM, your skill to pivot can rust. Adventurers reliably find joy in ignoring the most detailed plots. Therefore, a good DM must be able to pivot effectively and invent details in real-time.

Using on-the-spot randomization is a excellent way to develop these talents without straying too much outside your usual style. The key is to apply them for minor circumstances that don't fundamentally change the session's primary direction. As an example, I wouldn't use it to establish if the main villain is a traitor. However, I might use it to figure out whether the PCs arrive moments before a critical event occurs.

Strengthening Shared Narrative

Luck rolls also works to maintain tension and foster the impression that the game world is responsive, shaping based on their decisions as they play. It prevents the perception that they are merely characters in a DM's sole story, thereby strengthening the cooperative aspect of storytelling.

Randomization has always been integral to the core of D&D. Original D&D were filled with charts, which made sense for a playstyle focused on dungeon crawling. While modern D&D tends to emphasizes plot-driven play, leading many DMs to feel they need exhaustive notes, this isn't always the best approach.

Achieving the Healthy Equilibrium

There is absolutely no problem with doing your prep. However, there is also no problem with relinquishing control and allowing the whim of chance to decide some things in place of you. Control is a big part of a DM's role. We need it to run the game, yet we often struggle to release it, even when doing so could be beneficial.

My final suggestion is this: Don't be afraid of letting go of control. Try a little chance for inconsequential story elements. You might just create that the surprising result is significantly more powerful than anything you might have pre-written by yourself.