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When I am a Dungeon Master, I traditionally avoided heavy use of luck during my D&D adventures. I tended was for the plot and session development to be guided by character actions rather than the roll of a die. That said, I chose to try something different, and I'm very glad I did.

The Spark: Watching a Custom Mechanic

A well-known actual-play show features a DM who often calls for "chance rolls" from the players. The process entails picking a polyhedral and defining consequences tied to the result. While it's fundamentally no unlike using a pre-generated chart, these are devised spontaneously when a character's decision doesn't have a predetermined resolution.

I decided to try this method at my own table, primarily because it seemed engaging and presented a departure from my usual habits. The experience were eye-opening, prompting me to reflect on the perennial balance between preparation and improvisation in a roleplaying game.

An Emotional In-Game Example

In a recent session, my players had concluded a large-scale conflict. Afterwards, a cleric character inquired after two beloved NPCs—a pair—had survived. Instead of picking a fate, I asked for a roll. I instructed 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 would die; on a 10+, they both lived.

Fate decreed a 4. This triggered a profoundly poignant sequence where the party discovered the bodies of their companions, still united in death. The party performed funeral rites, which was especially significant due to prior character interactions. In a concluding touch, I improvised that the forms were miraculously restored, revealing a spell-storing object. I rolled for, the bead's magical effect was precisely what the party lacked to address another critical story problem. It's impossible to script such magical moments.

Honing Your Improvisation

This event led me to ponder if improvisation and thinking on your feet are truly the core of this game. While you are a prep-heavy DM, your skill to pivot can rust. Players reliably take delight in derailing the most detailed plots. Therefore, a effective DM has to be able to adapt swiftly and invent content in the moment.

Utilizing on-the-spot randomization is a fantastic way to develop these abilities without venturing too far outside your usual style. The strategy is to use them for minor decisions that have a limited impact on the session's primary direction. For instance, I would not employ it to establish if the king's advisor is a secret enemy. But, I could use it to determine whether the party reach a location just in time to see a key action unfolds.

Empowering Player Agency

Spontaneous randomization also works to make players feel invested and cultivate the impression that the game world is responsive, evolving based on their decisions immediately. It combats the perception that they are merely pawns in a DM's sole story, thereby bolstering the shared nature of the game.

Randomization has always been embedded in the core of D&D. Early editions were enamored with encounter generators, which fit a playstyle focused on treasure hunting. Even though current D&D tends to prioritizes narrative and role-play, leading many DMs to feel they must prep extensively, that may not be the best approach.

Achieving the Sweet Spot

Absolutely no issue with being prepared. Yet, equally valid nothing wrong with stepping back and allowing the dice to determine certain outcomes rather than you. Direction is a major part of a DM's role. We require it to facilitate play, yet we often struggle to cede it, in situations where doing so could be beneficial.

A piece of suggestion is this: Have no fear of relinquishing a bit of your plan. Experiment with a little randomness for minor details. The result could find that the organic story beat is infinitely more rewarding than anything you could have planned by yourself.