How common is a Nat 20?

A Nat 20 (Natural 20) on a 20-sided die (d20) is a 1 in 20 chance, or 5% for any single roll, a common occurrence over many rolls but rare in short sequences, making it feel special and significant in games like Dungeons & Dragons for critical successes or dramatic moments.
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What are the odds of a NAT 20?

The odds of rolling a natural 20 (a "nat 20") on a 20-sided die (d20) are 1 in 20, or 5%, the same as rolling any specific number. With advantage, where you roll two dice and take the higher, the chance increases to about 9.75% (nearly 1 in 10), while with disadvantage (rolling two and taking the lower), it drops significantly to 1 in 400 (0.25%), notes this Reddit post and the Zero Hit Points article. 
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Is Nat 20 always a success?

No, a natural 20 (Nat 20) on a d20 roll isn't always an automatic success in Dungeons & Dragons 5th Edition, only for attack rolls (guaranteed hit) and death saves (automatic stabilization); for skill/ability checks, it's often a "critical success" or the best possible outcome, but the Dungeon Master (DM) still determines if the task is possible and what the best result looks like, potentially allowing for nuanced success or even just a positive spin on an impossible task. 
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How rare is it to roll a natural 20?

This is simple probability: GETTING A NAT20: Your chances are 1:20 or 5% to roll a single Nat 20.
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What is the rarest dice roll?

, and the least common rolls are 2 and 12, both with probability 1/36.
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when your players' plan is stupid but they roll a nat 20

Is there a D1000 dice?

D-1,000. The crazy die of 1,000 numbers. 8-Sided die that displays all numbers from 000 to 999 in equal probability. The die uses 3 pentagon reels on each side of the die, arranged in a special decimal formula that enables display of all numbers from 0 to 999 in equal probability.
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What are the chances of rolling a 20 on a d20?

The chance of rolling a 20 on a single 20-sided die (d20) is 1 in 20, or 5%, because each number from 1 to 20 is equally likely. When rolling with advantage (rolling two d20s and taking the higher), the probability of getting at least one 20 increases to about 9.75% (or roughly 1 in 10), not 10%, because you're not just adding probabilities, but considering all 400 possible outcomes. 
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Does a Nat 20 beat any AC?

Nat20 is a hit and a crit (barring abilities/features negating crits) no matter what, even if your AC is 50.
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Is rolling dice luck or skill?

Is rolling skill or luck? If you're rolling dice fairly, then rolling dice comes purely down to luck – and that's the fun of it! Any skill used to influence the fall of the dice is dishonest. And around the game table, whether it is D&D or other RPGs or board games, when you're playing with your friends.
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Is a Nat 20 a critical hit?

Yes, in most tabletop RPGs, especially Dungeons & Dragons 5th Edition (D&D 5e), rolling a natural 20 (Nat 20) on an attack roll automatically results in a critical hit, meaning it's a guaranteed hit that deals extra damage (usually by rolling double damage dice) and bypasses high Armor Class (AC). A natural 20 is the die showing '20' before adding any bonuses. 
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Will a Nat 20 dominate the brain?

Yes, you can roll a natural 20 (Nat 20) on the nearly impossible DC 99 check against the Netherbrain in Baldur's Gate 3, and it does grant a beneficial effect (reducing the brain's health in the final fight), but it doesn't let you fully "dominate" it as a total success; the game's narrative still progresses with a challenging final battle, making it a significant, but not game-breaking, success.
 
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What is the 65% rule in D&D?

In 5e the chance of hitting is on average 65%. Based on that a +2 mod on AC reduces the chance to 55%. And a +9 mod to AC reduces the chance to hit to 20%. The three brackets represent you have a 65% chance to do minimum damage, 55% to do average damage and 20% to do max damage.
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Is there a better option than Roll20?

Tableplop is a fairly straightforward virtual tabletop with simple mechanics and software. It includes 5e DnD character sheets that are easy to fill out and use in a campaign, and even easier Fog of War tools than you get in Roll20 or other software that try to automate it.
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Why is 7 the most common dice roll?

Seven is the most common dice roll with two six-sided dice because it has the most combinations (6 out of 36 possibilities: 1+6, 2+5, 3+4, 4+3, 5+2, 6+1), creating a central peak in the probability distribution, unlike single dice where all numbers are equally likely. This statistical advantage makes it central to many games, forming a natural bell curve where outcomes cluster around seven.
 
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Can gambling be skill-based?

“Skill-Based” Gambling

Some examples include poker, Texas Hold 'Em, rummy, and other card games. Dominoes, backgammon, and chess are also examples of skill-based games.
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When a dice is thrown, outcomes 1, 2, 3, 4, 5, 6 are?

When a dice is thrown, outcomes 1 , 2 , 3 , 4 , 5 , 6 are equally likely.
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What is the most overpowered class in D&D?

The "strongest" D&D class in 5e is often considered the Wizard for raw spell power and versatility at high levels, but the Cleric, Bard, and Druid are strong contenders due to their potent spell lists, support, and unique utility, while Paladins offer incredible burst damage (smites) and martial prowess, making them top-tier. Ultimately, strength depends on playstyle, as Wizards need prep, while Bards excel at skills, and Clerics/Druids offer unique divine/nature magic. 
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What is the 27 rule in D&D?

Ability Score Point Cost

The number of points allocated to players in point buy varies based on campaign rules or Dungeon Masters discretion. Typically, the standard point buy system in D&D 5th edition provides 27 points for this purpose, offering a balanced approach to character creation.
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How much AC is too much D&D?

20 is basically the baseline. Anything over 34 is pointless in most campaigns (ancient dragons go up to +14 to hit). Anything over 39 is actually pointless, as the highest attack monsters in the game have a +19 to hit (tarrasque, tiamat).
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What are the odds of 3 nat 20s?

The odds are 1 - (19/20)20, or about a 64% chance. Rolling three 20s in that number of rolls is only likely to happen about 24% of the time! and having them consecutive is even less likely.
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What is the oldest d20 dice?

The oldest known d20 is an ancient icosahedron from Ptolemaic Egypt (around 2nd century B.C. to 4th century A.D.), housed at the Metropolitan Museum of Art. Carved from serpentine stone with Greek letters, it predates modern role-playing games by millennia and was likely used for divination or fortune-telling, not gaming as we know it.
 
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Why is probability 0 to 1?

Probability as a number lies between 0 and 1 .

A probability of 0 means that the event will not happen. For example, if the chance of being involved in a road traffic accident was 0 this would mean it would never happen. You would be perfectly safe. A probability of 1 means that the event will happen.
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