The Most Important Stat Block in D&D

There is one monster in the monster manual that tells us more about playing the game than any other.

The most important stat block in Dungeons & Dragons isn’t a dragon. It’s not a fiend and it’s not a celestial. Actually, it’s not a monster at all. It might be an NPC, but it’s not a warrior, rogue or spellcaster.

Okay, I won’t drag it out. It’s the Commoner.

Commoners aren’t a commonly used or well-loved stat block, because they have no real offensive capabilities or special traits. Their stats are average across the board and only the 2025 Monster Manual lets them have proficiency in a skill. There is no reason to use them in a combat, no real reason to even bold their designation in an adventure module, because their only purpose is to be a catch-all for any NPC who doesn’t have a more interesting stat block.

Right?

Well, no actually.

Commoners may not be useful for building combats — mainly because they are CR0 and worth only 10XP, meaning the average D&D party would need to kill one hundred and twenty of them just to reach Level 2 — but that doesn’t mean they aren’t exceptionally useful for understanding both the game and the narrative of D&D as a whole.

Commoners are average in everything because they are supposed to represent average people.

They create the easiest frame of reference for us to understand the fantastical worlds of Dungeons & Dragons — us.

They establish the baseline for what we, as humanoid creatures, would be capable of in a world like Eberron or the Forgotten Realms. They are neither too much or too little anything; they are entirely ordinary.

This means that they also get zero modifiers to everything, and that helps us to establish the baseline difficulty of everyday activities. According to the 2014 Dungeon Master’s Guide, a very easy task is a DC5 check, which means that there’s still a 20% chance that a commoner will fail.

Have you ever tried to put toothpaste on a toothbrush and had it just fall in the sink? You probably rolled a Natural 1.

Easy tasks are DC10, which means the average commoner has a 45% chance of failing. Moderate tasks are DC15, which increases the chance of failure to 70%. For a task that is hard for adventurers, DC20, a commoner has only a 5% chance of success, and anything beyond that is literally impossible for them to achieve.

Adventurers, on the other hand, can succeed most very easy tasks without even needing to roll a die. If they’re proficient in a skill, easy tasks become trivial, and experts automatically succeed. Even moderate tasks aren’t too challenging, with about a 50/50 chance of success for the proficient adventurer, even at Level 1.

But it’s in achieving the impossible that we really see the gulf between commoners and adventurers. The average person cannot escape from Dimensional Shackles or move an Immovable Rod, but being a player character puts these impossible feats within the realm of possibility.

It marks adventurers as a cut above.

Similarly, the lack of saving throw modifiers and proficiencies means that commoners roll straight on all saves. This means it’s possible for an ordinary person to resist a vampire’s charm ability or avoid the epicentre of a dragon’s breath, but not likely.

Of course, ‘avoiding the epicentre’ and ‘surviving’ a dragon’s breath are two very different things. Commoners have on average 4hp, which means that 8hp damage will kill them instantaneously. Even a successful save against dragon breath or a spell like Fireball would be fatal for them.

More to the point, falling from a height of 20ft has a 50% chance of knocking them unconscious, while falling from a height of 30ft has a 66% chance of killing them instantly. If a horse kicks a commoner, that commoner is almost certainly dead. The bite of a venomous snake would likely be fatal, as would a mauling from a sled dog or being attacked by a swarm of rats.

The rules of D&D, as they apply to commoners at least, seem pretty realistic.

A Level 1 adventurer, even a wizard or sorcerer with modest Constitution, is likely to have twice as much HP as an ordinary commoner. Beyond that, the disparity only increases. Things that are immediately fatal to ordinary people aren’t even worth worrying about for even low-level player characters.

The 2025 Monster Manual grants an option for commoners to have proficiency in one skill, and then to get advantage whenever they use it. This is a way of giving minor specialisations to ordinary people, so that your village can be populated with blacksmiths, publicans, merchants, farm labourers and other trades without the need for individual stat blocks for each.

But the most these people will ever get to their chosen ability is a +2. This means that a player with proficiency in any tool or skill is likely more capable of working metal than the village blacksmith, more persuasive than a store clerk and stronger than the average farmhand.

The point of all this is that commoners help us to see what is reasonably possible in the worlds of D&D. They establish a baseline, which player characters then advance well beyond during the course of their adventures. They help us to understand exactly how exceptional things like more HP, higher proficiency bonuses, higher stats and spellcasting make adventurers.

They also give us an insight into how terrifying life must be in the D&D worlds.

Falling off a roof or getting kicked by a horse could easily be fatal, so no wonder ordinary people are afraid of trolls, who could easily kill three commoners in six seconds. And all a dragon has to do is breathe to reduce an entire village, populace and all, to a smouldering ruin. No death saves.

Anything else the commoner stat block can teach us?

Actually, yes. The average person can’t stand up to the kind of threats that rear their ugly heads in D&D adventure modules. They won’t last long against the bandits, orcs, undead, dragon cultists, monstrosities, fiends, etc. that regularly threaten worlds like the Forgotten Realms. It’s hardly a surprise that they therefore need the help of capable adventurers to turn the tables in their favour.

That’s the real importance of the commoner stat block. It’s the yardstick against which all D&D characters and NPCs are measured against. The plight of commoners doesn’t just show us what it’s like to be an ordinary person in the worlds of D&D; they also show us why player characters are so important.