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In my role as a DM, I historically shied away from significant use of luck during my tabletop roleplaying sessions. I preferred was for story direction and session development to be guided by player choice as opposed to random chance. However, I opted to try something different, and I'm incredibly pleased with the outcome.

The Inspiration: Observing a Custom Mechanic

An influential podcast utilizes a DM who often calls for "fate rolls" from the adventurers. This involves selecting a polyhedral and outlining consequences tied to the number. This is at its core no distinct from consulting a pre-generated chart, these are created spontaneously when a course of events doesn't have a clear resolution.

I opted to test this approach at my own game, mainly because it seemed novel and offered a change from my usual habits. The outcome were remarkable, prompting me to think deeply about the often-debated tension between planning and randomization in a D&D campaign.

A Powerful In-Game Example

At a session, my group had survived a city-wide conflict. When the dust settled, a cleric character wondered if two friendly NPCs—a pair—had lived. Rather than picking a fate, I asked for a roll. I told the player to roll a d20. The possible results were: a low roll, both were killed; a middling roll, a single one would die; on a 10+, they survived.

The player rolled a 4. This triggered a deeply moving moment where the characters found the bodies of their companions, forever holding hands in their final moments. The cleric performed last rites, which was uniquely significant due to previous roleplaying. As a final touch, I chose that the remains were suddenly restored, showing a magical Prayer Bead. I rolled for, the item's contained spell was perfectly what the party needed to address another critical quest obstacle. It's impossible to script this type of serendipitous story beats.

Sharpening DM Agility

This incident caused me to question if improvisation and spontaneity are actually the core of this game. Even if you are a meticulously planning DM, your improvisation muscles need exercise. Players often find joy in derailing the most detailed plans. Therefore, a good DM needs to be able to think quickly and fabricate details on the fly.

Using luck rolls is a fantastic way to develop these abilities without venturing too far outside your comfort zone. The key is to deploy them for minor decisions that have a limited impact on the overarching story. To illustrate, I wouldn't use it to determine if the central plot figure is a secret enemy. Instead, I might use it to decide whether the PCs reach a location moments before a key action unfolds.

Empowering Collaborative Storytelling

This technique also serves to keep players engaged and foster the impression that the adventure is responsive, evolving according to their choices immediately. It combats the perception that they are merely actors in a DM's sole script, thereby enhancing the cooperative foundation of the game.

Randomization has long been integral to the game's DNA. The game's roots were filled with charts, which suited a playstyle focused on exploration. Even though modern D&D frequently emphasizes story and character, leading many DMs to feel they must prep extensively, it's not necessarily the only path.

Achieving the Healthy Equilibrium

There is absolutely no issue with thorough preparation. Yet, it's also fine no issue with letting go and letting the dice to decide some things instead of you. Authority is a big aspect of a DM's responsibilities. We require it to run the game, yet we frequently find it hard to release it, in situations where doing so can lead to great moments.

The core recommendation is this: Have no fear of relinquishing a bit of the reins. Experiment with a little improvisation for minor outcomes. You might just find that the unexpected outcome is significantly more memorable than anything you would have pre-written by yourself.