Secret Lesson 3

The Six Abilities: Strength, Dexterity, Constitution, Intelligence, Wisdom, and Charisma

Every creature in the game, whether it is a player character or a monster, is described partly through six fundamental abilities.

These six abilities represent a creature's physical and mental capabilities:

Strength
Dexterity
Constitution
Intelligence
Wisdom
Charisma

They are one of the foundations of the entire 5E rules system.

Later, they will affect ability checks, saving throws, attacks, class features, spellcasting, and many other mechanics.

For now, the goal is to understand:

  • what each ability represents

  • what an Ability Score means

  • how high and low scores are interpreted

  • what an Ability Modifier is

  • how the score determines that modifier

The SRD defines all six abilities as characteristics possessed by both characters and monsters.

THE SIX ABILITIES AT A GLANCE

The SRD summarizes the six abilities in a very direct way:

Ability What It Measures
Strength Physical might
Dexterity Agility, reflexes, and balance
Constitution Health and stamina
Intelligence Reasoning and memory
Wisdom Perceptiveness and mental fortitude
Charisma Confidence, poise, and charm

 

These six abilities cover the major physical and mental qualities a creature brings into the game.

Let's look at them individually.

STRENGTH

Physical Might

Strength represents raw physical power.

It reflects how forcefully a creature can use its body.

The SRD associates Strength with physical might and later gives examples such as:

  • lifting something

  • pushing something

  • pulling something

  • breaking something

 

A creature with high Strength is physically powerful.

A creature with low Strength has less physical force available to it.

STRENGTH IN PLAY

Imagine two adventurers trying to force open a stuck stone door.

One has a high Strength score.

The other has a low Strength score.

Both can attempt the action.

But when the rules require Strength to resolve the attempt, their different Strength modifiers can affect the result.

We will learn exactly how that works when we study D20 Tests and Ability Checks.

For now:

Strength = physical power.

DEXTERITY

Agility, Reflexes, and Balance

Dexterity represents a creature's ability to move with precision and control.

The SRD describes Dexterity as measuring:

  • agility

  • reflexes

  • balance

It later associates Dexterity checks with moving:

  • nimbly

  • quickly

  • quietly

 

Dexterity therefore matters when the important question is not raw power but how accurately, quickly, quietly, or gracefully a creature can move.

DEXTERITY IN PLAY

Imagine an adventurer trying to move quietly past a sleeping enemy.

Another character might be trying to perform a delicate physical maneuver.

These situations depend more naturally on control and agility than on brute force.

That is the territory of Dexterity.

For now:

Dexterity = agility, reflexes, and physical precision.

CONSTITUTION

Health and Stamina

Constitution represents a creature's physical durability.

The SRD describes it as measuring:

  • health

  • stamina

It later gives pushing the body beyond normal limits as an example of a Constitution check.

Constitution is therefore different from Strength.

Strength asks:

How powerful is your body?

Constitution asks:

How well can your body endure?

STRENGTH VS. CONSTITUTION

This distinction is important.

A creature might be physically powerful but not especially resilient.

Another might not possess exceptional raw strength but could have extraordinary endurance.

They represent different physical qualities.

Strength

Power.

Constitution

Endurance.

That difference will become increasingly important later in the course.

INTELLIGENCE

Reasoning and Memory

Intelligence represents a creature's capacity for reasoning and remembering information.

The SRD identifies Intelligence with:

  • reasoning

  • memory

and lists reasoning or remembering as examples of Intelligence-based checks.

Intelligence therefore concerns how a creature processes, recalls, and works with information.

INTELLIGENCE IN PLAY

Imagine a character trying to understand a complex clue.

Another might be attempting to recall something they previously learned.

When the important part of the task is reasoning or memory, Intelligence can become relevant.

For now:

Intelligence = reasoning and memory.

WISDOM

Perceptiveness and Mental Fortitude

Wisdom represents:

  • perceptiveness

  • mental fortitude

The SRD later describes Wisdom checks as being used to notice things in the environment or in another creature's behavior.

Wisdom is therefore strongly connected with awareness.

It can reflect how effectively a creature notices what is happening around it or recognizes meaningful details in another creature's behavior.

INTELLIGENCE VS. WISDOM

These two abilities can sometimes appear similar to a new player, but the SRD describes them differently.

Intelligence

Reasoning and memory.

Wisdom

Perceptiveness and mental fortitude.

A character might be very good at remembering information but less effective at noticing subtle details around them.

Another might be highly perceptive without possessing exceptional reasoning or memory.

The abilities measure different things.

CHARISMA

Confidence, Poise, and Charm

Charisma represents a creature's personal presence.

The SRD describes Charisma as measuring:

  • confidence

  • poise

  • charm

and later associates Charisma-based checks with:

  • influencing

  • entertaining

  • deceiving

 

Charisma therefore relates to how effectively a creature projects itself and affects others socially.

CHARISMA IN PLAY

Imagine an adventurer attempting to convince someone to cooperate.

Another might try to entertain a crowd.

Another might attempt to deceive someone.

These are situations where personal presence and communication can matter.

For now:

Charisma = confidence, poise, and charm.

PHYSICAL AND MENTAL ABILITIES

The six abilities can be understood as covering both physical and mental characteristics.

The physical abilities are:

Strength
Dexterity
Constitution

The mental abilities are:

Intelligence
Wisdom
Charisma

The SRD describes the six abilities collectively as measurements of physical and mental characteristics.

Each ability measures something different.

Together, they form a broad numerical description of what a creature can do.

ABILITY SCORES

Knowing the name of an ability is only the beginning.

Every ability also has an Ability Score.

An Ability Score represents the magnitude of that ability.

For player characters, these scores normally fall within a range from 1 to 20.

Some monsters can have scores as high as 30.

So a character doesn't simply have:

Strength

They might have:

Strength 8

or:

Strength 15

or:

Strength 20

The number tells us how strong that ability is.

WHAT DO ABILITY SCORES MEAN?

The SRD provides a useful scale.

SCORE 1

This is normally the lowest an Ability Score can go.

If a particular effect reduces an Ability Score to 0, that effect explains what happens.

SCORES 2–9

These represent a weak capability.

SCORES 10–11

These represent the human average.

This gives you a useful reference point.

A score around 10 or 11 represents ordinary human capability in that ability.

SCORES 12–19

These represent a strong capability.

The higher the score rises within this range, the greater the creature's capability.

SCORE 20

A score of 20 is normally the highest an adventurer can reach unless a feature specifically says otherwise.

Remember the rule from Lesson 2:

a specific feature can create an exception to a general rule.

So 20 is the normal adventurer limit, but a feature may explicitly allow something different.

SCORES 21–29

These represent extraordinary capability.

These scores can occur among creatures whose capabilities extend beyond the normal limits of adventurers.

SCORE 30

30 is the highest an Ability Score can go.

That is the upper limit presented by the SRD.

THE COMPLETE ABILITY SCORE SCALE

Ability Score General Meaning
1 Normally the lowest possible score
2–9 Weak capability
10–11 Human average
12–19 Strong capability
20 Normal maximum for an adventurer unless a feature says otherwise
21–29 Extraordinary capability
30 Maximum possible score

 

ABILITY SCORES ARE NOT THE NUMBER YOU USUALLY ADD TO A ROLL

This is one of the first important distinctions for new players.

Imagine that your character has:

Strength 16

You normally do not simply add 16 to a D20 Test.

Instead, every Ability Score has an associated number called an:

ABILITY MODIFIER

The Ability Modifier is derived from the Ability Score.

That modifier is the number that the rules use when a D20 Test calls for the corresponding ability.

So there are two related numbers:

Ability Score

The underlying value of the ability.

Ability Modifier

The number derived from that score and applied when the rules tell you to use that ability modifier.

ABILITY MODIFIERS

The SRD gives the following complete table:

Ability Score Modifier
1 −5
2–3 −4
4–5 −3
6–7 −2
8–9 −1
10–11 +0
12–13 +1
14–15 +2
16–17 +3
18–19 +4
20–21 +5
22–23 +6
24–25 +7
26–27 +8
28–29 +9
30 +10

 

This table is extremely important.

You will use these modifiers constantly as you learn the rest of the game.

EXAMPLE 1 — STRENGTH 16

Suppose your character has:

Strength 16

According to the table:

Strength 16 = +3 modifier

So when a rule asks you to make a D20 Test using Strength, the relevant Ability Modifier is:

+3

EXAMPLE 2 — DEXTERITY 8

Suppose a creature has:

Dexterity 8

The table gives it:

Dexterity modifier −1

So when Dexterity is the relevant ability, the creature has a negative modifier.

EXAMPLE 3 — INTELLIGENCE 10

Suppose a character has:

Intelligence 10

Its modifier is:

+0

This means that the ability neither adds a positive Ability Modifier nor imposes a negative one.

EXAMPLE 4 — CONSTITUTION 20

A creature with:

Constitution 20

has a:

+5 Constitution modifier

because scores of 20–21 correspond to a +5 modifier.

HIGHER SCORES PRODUCE BETTER MODIFIERS

Look at the pattern.

As the Ability Score increases, the Ability Modifier also improves.

For example:

8 → −1

10 → +0

12 → +1

14 → +2

16 → +3

18 → +4

20 → +5

This relationship allows the Ability Score to represent the creature's underlying capability while the modifier provides the number used by many game mechanics.

NEGATIVE MODIFIERS

An Ability Modifier can be negative.

For example:

Strength 6 = −2

That does not mean the character cannot attempt something involving Strength.

It means that when the rules require the Strength modifier, that negative number affects the calculation.

We will see exactly how modifiers are applied in Lesson 4 — D20 Tests.

POSITIVE MODIFIERS

Higher scores produce positive modifiers.

For example:

Charisma 18 = +4

When a D20 Test uses Charisma, that +4 can become part of the total.

Again, the full procedure comes in the next lesson.

EACH ABILITY HAS ITS OWN SCORE AND MODIFIER

A character does not have one general Ability Score.

The character has six separate Ability Scores.

For example, an adventurer could have:

Strength 16 → +3

Dexterity 12 → +1

Constitution 14 → +2

Intelligence 10 → +0

Wisdom 8 → −1

Charisma 18 → +4

That creates a character who is mechanically different from someone with another distribution.

The six abilities allow creatures to have different strengths and weaknesses.

THE RELEVANT ABILITY

Later, when you make a D20 Test, the rules or the situation determine which Ability Modifier is relevant.

The SRD gives broad examples:

Strength

Lift, push, pull, or break something.

Dexterity

Move nimbly, quickly, or quietly.

Constitution

Push the body beyond normal limits.

Intelligence

Reason or remember.

Wisdom

Notice things in the environment or in creature behavior.

Charisma

Influence, entertain, or deceive.

 

These examples help show why six different abilities are necessary.

Different challenges test different qualities.

ONE CHARACTER CAN BE STRONG IN ONE AREA AND WEAK IN ANOTHER

Suppose two adventurers face the same adventure.

One has high Strength and Constitution but lower Intelligence.

The other has high Intelligence and Wisdom but lower Strength.

They may approach challenges differently because their abilities are different.

The system does not assume that every adventurer is equally capable in every area.

Ability Scores help create mechanical differences between characters and creatures.

CHARACTERS AND MONSTERS USE THE SAME SIX ABILITIES

This is another important concept.

The six abilities are not exclusive to player characters.

The SRD explicitly states that:

all creatures, characters and monsters, have the six abilities.

That gives the game a common mechanical language.

When you eventually learn to read monster stat blocks, you will see the same six abilities there.

ABILITIES AND D20 TESTS

The SRD states that an Ability Modifier is applied whenever you make a D20 Test with that ability.

D20 Tests come in three forms:

  • Ability Checks

  • Saving Throws

  • Attack Rolls

 

We are not going to fully explain those mechanics yet.

That is the purpose of the next lessons.

The important connection for now is:

Ability Score → Ability Modifier → D20 Test

That chain will appear constantly throughout the rules.

A SIMPLE PREVIEW

Imagine your character has:

Strength 16

Therefore:

Strength Modifier = +3

Later, the GM asks for a D20 Test using Strength.

The Strength modifier becomes relevant to that roll.

That is why understanding Ability Modifiers before learning D20 Tests is so important.

DO NOT CONFUSE SCORE AND MODIFIER

A common beginner mistake is to confuse these two numbers.

If your character has:

Dexterity 14

then:

Dexterity Score

14

Dexterity Modifier

+2

They are related, but they are not interchangeable.

When a rule says:

Dexterity score

it means 14.

When a rule says:

Dexterity modifier

it means +2.

Always pay attention to which one the rule requests.

QUICK CHARACTER EXAMPLE

Consider this imaginary character:

Ability Score Modifier
Strength 14 +2
Dexterity 16 +3
Constitution 12 +1
Intelligence 10 +0
Wisdom 8 −1
Charisma 18 +4

From these numbers alone, we can already see mechanically that the character has different levels of capability across the six abilities.

The precise importance of those numbers will become clearer as we learn checks, saving throws, attacks, classes, and other systems.

LESSON 3 — KEY TAKEAWAYS

THERE ARE SIX ABILITIES

Strength — physical might.

Dexterity — agility, reflexes, and balance.

Constitution — health and stamina.

Intelligence — reasoning and memory.

Wisdom — perceptiveness and mental fortitude.

Charisma — confidence, poise, and charm.

EVERY CREATURE HAS THEM

Player characters and monsters use the same six abilities.

EACH ABILITY HAS A SCORE

Ability Scores normally range from 1 to 20 for adventurers.

Some monsters can reach 30.

10–11 REPRESENTS HUMAN AVERAGE

Scores below that range indicate weaker capability, while higher scores indicate increasingly strong or extraordinary capability.

20 IS NORMALLY THE ADVENTURER LIMIT

An adventurer normally can't raise an Ability Score above 20 unless a feature specifically permits it.

30 IS THE MAXIMUM

The SRD identifies 30 as the highest an Ability Score can reach.

EACH SCORE PRODUCES AN ABILITY MODIFIER

Examples:

8 → −1

10 → +0

14 → +2

16 → +3

18 → +4

20 → +5

SCORE AND MODIFIER ARE DIFFERENT

Strength 16 is the Ability Score.

+3 is its Ability Modifier.

ABILITY MODIFIERS CONNECT TO D20 TESTS

The relevant Ability Modifier becomes part of many of the game's central rolls.

And that leads directly to our next lesson.

NEXT LESSON

LESSON 4 — D20 TESTS: THE CORE MECHANIC OF THE GAME

Now that you understand Ability Scores and Ability Modifiers, we can learn how the game uses them.

In Lesson 4, we will study the central resolution mechanic of 5E:

the D20 Test.

You will learn:

  • when a D20 Test is used

  • the three kinds of D20 Tests

  • how to roll the d20

  • how Ability Modifiers are added

  • when Proficiency Bonus applies

  • how bonuses and penalties affect the roll

  • how the final total is compared with a target number

  • the difference between Difficulty Class and Armor Class

This is where the numbers on the character sheet begin turning into actual gameplay.

SRD 5.2.1 ATTRIBUTION

This work includes material from the System Reference Document 5.2.1 (“SRD 5.2.1”) by Wizards of the Coast LLC, available at https://www.dndbeyond.com/srd. The SRD 5.2.1 is licensed under the Creative Commons Attribution 4.0 International License, available at https://creativecommons.org/licenses/by/4.0/legalcode.