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When I am a Dungeon Master, I traditionally avoided heavy use of luck during my Dungeons & Dragons games. My preference was for narrative flow and what happened in a game to be determined by character actions as opposed to random chance. However, I opted to alter my method, and I'm very pleased with the outcome.

The Catalyst: Seeing 'Luck Rolls'

An influential actual-play show utilizes a DM who often asks for "chance rolls" from the players. He does this by selecting a polyhedral and outlining possible results tied to the number. It's fundamentally no different from rolling on a pre-generated chart, these get invented spontaneously when a character's decision lacks a obvious conclusion.

I opted to test this approach at my own table, primarily because it seemed engaging and presented a change from my usual habits. The results were eye-opening, prompting me to reconsider the ongoing tension between pre-determination and spontaneity in a tabletop session.

An Emotional Session Moment

During one session, my group had just emerged from a large-scale battle. When the dust settled, a player inquired after two key NPCs—a brother and sister—had made it. Rather than choosing an outcome, I asked for a roll. I told the player to make a twenty-sided die roll. I defined the outcomes as: a low roll, both would perish; on a 5-9, only one succumbed; on a 10+, they made it.

The player rolled a 4. This resulted in a incredibly moving moment where the characters found the corpses of their allies, forever united in their final moments. The group conducted last rites, which was particularly powerful due to prior story developments. As a parting reward, I chose that the NPCs' bodies were strangely transformed, containing a magical Prayer Bead. I randomized, the bead's contained spell was exactly what the group needed to solve another critical story problem. You simply orchestrate these kinds of magical story beats.

Sharpening DM Agility

This incident led me to ponder if randomization and making it up are actually the beating heart of tabletop RPGs. Even if you are a prep-heavy DM, your improvisation muscles need exercise. Adventurers frequently find joy in derailing the most carefully laid narratives. Therefore, a effective DM has to be able to pivot effectively and fabricate scenarios on the fly.

Utilizing luck rolls is a fantastic way to develop these talents without venturing too far outside your usual style. The strategy is to use them for low-stakes situations that have a limited impact on the overarching story. As an example, I would not employ it to determine if the central plot figure is a traitor. However, I might use it to figure out whether the PCs enter a room moments before a key action takes place.

Empowering Shared Narrative

This technique also helps make players feel invested and foster the sensation that the adventure is alive, shaping in reaction to their choices in real-time. It prevents the feeling that they are merely pawns in a pre-written script, thereby strengthening the collaborative aspect of the game.

Randomization has long been part of the original design. Original D&D were reliant on random tables, which fit a game focused on dungeon crawling. Even though current D&D often prioritizes narrative and role-play, leading many DMs to feel they must prep extensively, this isn't always the only path.

Striking the Sweet Spot

There is absolutely nothing wrong with being prepared. But, there is also no issue with letting go and allowing the rolls to decide some things rather than you. Direction is a major aspect of a DM's role. We require it to manage the world, yet we can be reluctant to release it, at times when doing so can lead to great moments.

A piece of recommendation is this: Have no fear of temporarily losing control. Embrace a little randomness for minor story elements. It may find that the organic story beat is significantly more memorable than anything you could have pre-written on your own.