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The game rolls an '''Ability Check''' to determine whether a creature will succeed or fail in various scenarios.  The creature rolls a D20, and adds its [[#Ability Score Modifier|Ability Score Modifier]] and possibly a [[#Proficiency Bonus|Proficiency Bonus]].  To succeed, the result must reach or exceed a Difficulty Class, which depends on what the creature is trying to accomplish.
#REDIRECT [[Abilities#Ability checks]]
 
Result = {{D20}} + Ability Score Modifier + (optional) Proficiency Bonus
 
Ability Checks can be based purely on an [[Ability Score]], in which case they can only benefit from the Ability Score Modifier, but not the Proficiency Bonus.
 
== Skill Check ==
 
More commonly, the check will be related to a specific [[Skill]].  This determines the Ability Score used for the Modifier, but also lets the creature use its Proficiency Bonus if it happens to be [[Proficiency|Proficient]] in that Skill.  In this case, the check may be called a '''Skill Check''' rather than an Ability Check.
 
For example, when a trap is nearby, the game rolls a Perception Check (or in short, "rolls Perception").  Perception is related to Wisdom, so the creature's Wisdom Ability Score Modifier is applied.  If the creature is Proficient in Perception, then the creature's Proficiency Bonus is also added.
 
=== Ability Score Modifier ===
 
Following is the Ability Score Modifier table:
 
{| class="wikitable" style="width: 30%; text-align: center;"
|+ Ability Score Modifier depending on the value of the corresponding Ability Score
! 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
|}
 
=== List of Skills by Ability Score ===
 
Following is the list of Skills that a creature can be Proficient in, sorted by the Ability Score which the skill is based on:
 
{| class="wikitable" style="width: 75%"
|+ List of Skills, sorted by the Ability Score they're related to
! Strength !! Dexterity !! Intelligence !! Wisdom !! Charisma
|-
| style="width: 20%" |
* Athletics
| style="width: 20%" |
* Acrobatics
* Sleight of Hand
* Stealth
| style="width: 20%" |
* Arcana
* History
* Investigation
* Nature
* Religion
| style="width: 20%" |
* Animal Handling
* Insight
* Medicine
* Perception
* Survival
| style="width: 20%" |
* Deception
* Intimidation
* Performance
* Persuasion
|}
 
(There are no Skills based on Constitution.)
 
== Contest ==
 
A special type of Ability Check is called the Contest, in which two creatures both roll an Ability Check or Skill Check to contest each other, and one wins over the other.  The creatures don't necessarily roll the same type of check.
 
An example of this is the [[Shove]] action, where the creature attempting the Shove must roll Athletics, and the defending creature is allowed to roll either Athletics or Acrobatics to contest the Shove.  If the attacker's roll is higher than the defender's, the Shove succeeds, otherwise it fails.

Latest revision as of 05:00, 19 December 2023