What’s a Dirty 20?
In the world of tabletop role-playing games, particularly in Dungeons & Dragons (D&D), a "dirty 20" is a term used to describe a situation where a player rolls a 20 on a 20-sided die (d20) but does not actually achieve a natural success. This can occur when the player’s character has a modifier that brings the total result below 20, making the roll appear "dirty" or artificial.
What is a NAT 20?
A NAT 20, on the other hand, is a natural 20, where the player rolls a 20 on the d20 without any modifiers. This is considered an automatic success, regardless of the target’s Armor Class (AC) or other factors.
The Difference Between a NAT 20 and a Dirty 20
To illustrate the difference, let’s consider an example:
- A player rolls a 16 on a d20 and has a +4 modifier, resulting in a total of 20. This is a dirty 20, as the player’s character has a modifier that brings the total result to 20.
- A player rolls a 20 on a d20 without any modifiers. This is a NAT 20, as the player’s character has achieved a natural success without any external factors influencing the result.
Why is a Dirty 20 Important?
In D&D, a dirty 20 can have significant implications for gameplay. For example:
- Critical Hits: In some cases, a dirty 20 can result in a critical hit, which can deal increased damage or have other beneficial effects.
- Automatic Success: A dirty 20 can also result in an automatic success, allowing the player’s character to achieve their desired outcome without any additional rolls.
- Game Balance: A dirty 20 can affect game balance, as it can create an imbalance between the player’s character and the game’s challenges.
Common Scenarios Where a Dirty 20 Occurs
Here are some common scenarios where a dirty 20 may occur:
- Attack Rolls: When a player rolls a 16 or higher on an attack roll and has a high enough modifier to bring the total result to 20.
- Skill Checks: When a player rolls a 16 or higher on a skill check and has a high enough modifier to bring the total result to 20.
- Saving Throws: When a player rolls a 16 or higher on a saving throw and has a high enough modifier to bring the total result to 20.
Conclusion
In conclusion, a dirty 20 is a term used to describe a situation where a player rolls a 20 on a d20 but does not actually achieve a natural success due to modifiers. Understanding the difference between a NAT 20 and a dirty 20 is crucial for effective gameplay and game balance. By recognizing the scenarios where a dirty 20 may occur, players can make informed decisions and adjust their strategies accordingly.
Additional Tips and Tricks
Here are some additional tips and tricks to keep in mind:
- Keep Track of Modifiers: Always keep track of your character’s modifiers, as they can significantly impact the outcome of rolls.
- Plan Ahead: Plan your attacks, skill checks, and saving throws carefully to maximize your chances of success.
- Communicate with Your DM: Communicate with your Dungeon Master (DM) to ensure that you understand the game’s rules and mechanics.
Table: Dirty 20 Scenarios
| Scenario | Description | Outcome |
|---|---|---|
| Attack Roll | Roll 16 or higher with a high enough modifier | Critical Hit or Automatic Success |
| Skill Check | Roll 16 or higher with a high enough modifier | Success or Failure |
| Saving Throw | Roll 16 or higher with a high enough modifier | Success or Failure |
By understanding the concept of a dirty 20 and its implications, you can improve your gameplay and become a more effective player in the world of D&D.