The advantage/disadvantage mechanic is a mechanic in 5th edition D&D that replaces most numerical bonuses and penalties with rolling twice and taking the higher or lower value.

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### Does seeing invisible creature stop advantage and disadvantage? [duplicate]

On my last session one of my players became invisible with the whole team, but the enemy could, and did, cast see invisibility. Then my player argued that, in resulting combat, they still had ...
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### Is making all Opportunity Attacks have disadvantage game breaking in any way?

To try and promote more movement in my game I'm considering a ruling where all Opportunity Attacks have disadvantage. Are there any ways this would significantly change the game? Party consists of two ...
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### What is the net effect from advantage or disadvantage on to hit chance? [duplicate]

For many character build calculations, it is valuable to know how much to hit chance is added by advantage (or removed by disadvantage). This differs depening on the number required for a hit on the ...
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1 vote
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### How do I calculate the probabilities of two consecutive success results in AnyDice?

I know that rolling with disadvantage gives you a negative bonus in between 1 and 2, that's easy to calculate in anydice.com but how can I estimate the increasing in difficulty that adds an extra roll?...
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### Can you use silvery barbs to get advantage on a saving throw?

The description of the spell says 1 reaction, which you take when a creature you can see within 60 feet of yourself succeeds on an attack roll, an ability check, or a saving throw So it sounds like ...
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### Is it mathematically better to roll one attack or two with disadvantage?

Rolling one attack with advantage is worse than rolling two normal attacks (because we have two attack rolls either way, but only one vs two chances of dealing dmaage). However, what of the inverse ...
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### Can multiple summoned creatures Help multiple allies gain Advantage through one verbal command? [duplicate]

If a player's character summons N creatures, say for example 10 Giant Centipedes using Giant Insect, and immediately uses his free action to verbally command them en masse to use their Help Action to &...
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### What is the interaction between "cannot make a roll with advantage" and disadvantage?

Picture the following scenario. A creature attacks me, and through any combination of features, spells, conditions and other effects (for example, I am a Recklessly Attacking barbarian being ...
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### How does Silvery Barbs interact with other "reroll" effects?

This other question discusses how silvery barbs interacts with advantage and disadvantage. But there are some effects that let someone reroll a d20 without using the advantage/disadvantage mechanic, ...
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### How does the silvery barbs spell interact with the enemy having advantage?

How does the Silvery Barbs spell interact with the enemy having advantage? For example, consider the following situation: You cast a spell that requires a saving throw against a single target. Your ...
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### What is the statistical difference, if there is one, between attacking twice (action and bonus action) and attacking once with advantage?

In our 5e campaign, I'm playing an 8th-level Rogue (Arcane Trickster) with the Crossbow Expert feat, which (among other things) means I can shoot twice in one turn: once as a bonus action and once as ...
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### How does eldritch blast interact with being hidden?

A level 5 goblin warlock moves behind a large tree and uses their bonus action to Hide. Their Stealth check beats the enemy's passive Perception. The hidden warlock then casts eldritch blast and rolls....
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### Can attacks against an Echo gain advantage for unseen attacker?

Usually, when two creatures can't see each other, and one makes an attack roll against the other, we roll a straight single D20-- advantage from unseen attacker cancels out with disadvantage from ...
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### The Armorer artificer's Infiltrator Armor Model negates disadvantage on Stealth from armor; can you still gain advantage on the check by other means?

The Armorer artificer's Armor Model feature (TCoE, p. 16) lets you customize your Arcane Armor into the Infiltrator or Guardian armor models, each of which grants several benefits. The Infiltrator ...
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### Is it possible to gain the benefits of lying prone without incurring disadvantage on attacks? If so, is this broken?

PHB p. 190 says: You can drop prone without using any of your speed. Standing up takes more effort; doing so costs an amount of movement equal to half your speed... You can't stand up if you don't ...
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### Does Advantage on a target only apply for the first of multiple attacks?

Any time you get Advantage on a target you roll 2 dice and keep the better roll, and do the opposite for Disadvantage. How does this affect attacks if you have multiple attacks such as from fighters/...
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### Can I use Booming Blade and Sneak Attack, and then use Disengage (if the first attack hit) or Two-Weapon Fighting (if it missed) on the same turn?

I am building a rogue-warlock multiclass in D&D 5e. I get advantage using my familiar's Help action. And because it is near me, I can use Sneak Attack as well. I am thinking about using booming ...
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### 'Advantage' or 'Disadvantage' on damage rolls

I am looking at creating a few new categories of weapons just to add a bit more reason to spend money on mundane equipment in the early game. Poor, and Masterwork. My initial idea is that poor weapons ...
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### Do you have disadvantage in dim light on attack rolls?

On p183 of the PHB under Vison and light it says: The most fundamental tasks of adventuring— noticing danger, finding hidden Objects, hitting an enemy in Combat, and targeting a spell, to name just a ...
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### If I make a ranged attack at a paralyzed creature within 5 feet of me, do I have advantage on the roll?

If I cast guiding bolt at a paralyzed creature while standing within 5 feet of it (so it counts as a critical hit), do I have advantage on the roll? The rule on "Ranged Attacks in Close Combat&...
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### When is casting Blade Ward better than taking the Dodge action?

I'm considering Blade Ward for a character's cantrip selection. It takes an action to cast, resulting in the following effect: Until the end of your next turn, you have resistance against ...
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### Does a stunned creature roll Initiative with disadvantage?

Part of our group got stunned before Initiative was rolled: Stunned A stunned creature is incapacitated (see the condition), can’t move, and can speak only falteringly. The creature automatically ...
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### Is this Homebrew Advantage rule broken?

I know about this suggestion. Mine is an even further extension of that, and I'm asking about whether there are any further issues and whether I've fixed Lucky. I find the way 5e handles multiple ...
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### Is the Clockwork Soul Sorcerer's Restore Balance feature a visible effect?

If a Clockwork Soul Sorcerer is in a social situation and has disadvantage on a persuasion check, then uses their Restore Balance feature, would anyone be able to see that?
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### How does a Cloak of Displacement interact with a tortle's Shell Defense?

The cloak has a property that causes creatures to have disadvantage on attack rolls against the one wearing it (emphasis mine): While you wear this cloak, it projects an illusion that makes you ...
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### Does the duration of the invisibility from the Firbolg's Hidden Step trait allow me to make an attack roll with advantage on the following turn?

The firbolg's Hidden Step trait (VGtM, p. 107) is described as being active "until the start of your next turn" at most: As a bonus action, you can magically turn invisible until the start ...
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### How does the Dissonant Whispers spell interact with advantage from the halfling's Brave trait?

If someone casts the dissonant whispers spell on my halfling, how does it interact with the halfling's Brave trait? I roll 2d20 for the advantage, and this "succeed or fail the save" result ...
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### Does an effect that imposes disadvantage on saving throws remove the advantage from a creature's Magic Resistance trait?

How would the Magic Resistance trait interact with effects that impose disadvantage on saving throws (e.g. the sorcerer’s Heightened Spell Metamagic option, the first bullet point from the bestow ...
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### The Inquisitive rogue's Eye for Detail feature allows bonus-action Perception checks. Would that negate disadvantage on attacks when heavily obscured?

The Inquisitive rogue subclass allows Perception checks as a bonus action. Would that remove or affect disadvantage on attacks in a heavily obscured area during combat? Let's say an Inquisitive rogue ...
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### Do you get advantage on the Steel Wind Strike spell's attacks because you "vanish"?

The spell steel wind strike (XGtE, p. 166) says that you: vanish to strike like the wind. (Emphasis added) At first glance you might read this as an inconsequential part of the description. But ...
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### Does Blink grant advantage on the first attack roll after you return?

When you Blink you leave the normally visible area. Because the attacker doesn't see you coming when you blink back in, would you have advantage on the first attack roll?
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### Does the Grappler feat give advantage on a subsequent shove attempt vs. your grappled target?

The Grappler feat says it gives advantage on attack rolls against a creature you are grappling. Does this include attempts to shove the grappled creature?
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### Can True Strike give me specific information about my target's defenses? [duplicate]

The True Strike cantrip provides: You point a finger at a target in range. Your magic grants you a brief insight into the target's defenses. On your next turn, you gain advantage on your first attack ...
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### Does Enhance Ability spell help with saving throws?

Background: I was hoping to use Enhance Ability and its Bear's Endurance option to speed up our travelling a bit. But now I am not sure if it will work, hence this question. Enhance Ability - Bear's ...
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### Do melee and ranged spell attack rolls have advantage against a stunned creature?

In D&D 5e, if a creature has a condition such as Stunned, then: Attack rolls against the creature have advantage. Does this benefit also apply to spells that require melee or ranged spell attack ...
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### Give disadvantage always, when attacking a non-visible target [duplicate]

RAW, advantages and disadvantages cancel each others out, always. Here I am interested in the case, where these two (found at PHB - Combat - Unseen Attackers and Targets) cancel each others out: When ...
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### Invisible target at long range

Scenario: An archer has two targets, both of which are at long range (i.e more than 80 feet and less than 320 feet for a shortbow). One of these targets is invisible. Is it correct that the archer has ...
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### Is there any way to actually impose disadvantage (not just cancel advantage) on saving throws against spells for a creature with Magic Resistance?

Many creatures in D&D 5e have a feature called Magic Resistance. One such is the Archmage: Magic Resistance. The archmage has advantage on saving throws against spells and other magical effects. ...
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### Mechanically speaking, what makes an item more useful, a raw bonus or advantage?

I'm looking at D&D 5e to homebrew a specific item and I'm debating what would be better: advantage or raw bonus? The item is a coin that you toss before an ability check or an attack roll. If the ...
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### Will a Reckless Attack give advantage on attacks against a manifested echo of an Echo knight?

Question is simple. If an Echo Knight/Barbarian uses Reckless Attack on a creature and hits, will attacks made against their echo also be made with advantage?
1 vote
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### Does a player character wielding a whip gain advantage if they are 10 feet away from the target? [duplicate]

We had an episode in combat tonight that I was not sure how to adjudicate. A player character (PC1) with a whip was 10 feet away from an enemy. In between PC1 and the enemy was another player ...
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### How to negate disadvantage on performance? [closed]

My bard will need to play for a long time. Long long time. Long enough that they'll basically collapse from exhaustion, as the purpose is to show devotion. Forced march rules seem to fit, so we can ...
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### Chronurgist Wizard's Chronal Shift at advantage/disadvantage [duplicate]

During my session a player come under the effects of the Dominate Monster spell during a combat. The player, rolled at advantage as written in the spells description, but failed the Wisdom DC both ...
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### A player rolls several 20-sided dice, takes the lowest value, ignores the rest. What is the probability of this value being at least 7?

I'm designing a tabletop game, and I need to figure out how to calculate a few probabilities: Roll 3 20-sided dice, take the highest value. What is the probability of it being 7 or higher? 15 or ...
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### Can a Changeling with the Actor feat have permanent advantage on Performance and Deception checks?

The changeling's Shapechanger trait says (E:RftLW, p. 18; WGtE, p. 61): As an action, you can change your appearance and your voice. You determine the specifics of the changes, including your ...
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### Can a creature with blindsight see another creature that is Heavily Obscured?

If a creature is Heavily Obscured, can it be seen normally by a creature with blindsight? More specifically, will a creature with blindsight have disadvantage on attacks against the heavily obscured ...
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### How do I calculate d20 success probability using the Halfling 'lucky' trait with advantage?

Here is a comprehensive DPR calculator, and here is the mathematics behind it. I'm trying to follow along with the equations. At the bottom of the second page are formulas for success probability \\$L\...
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### What's worse, -2 or disadvantage?

So, I'm building a system that adds an extra level of flavor, with some minor mechanics as an optional side system for a 5e campaign. The basic function is, you collect points, then collect a deficit. ...
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### Forcing a saving throw to be made with disadvantage [closed]

I know there is already a similar question, but it doesn't really give me an answer. Is there such a thing as a feat or an item that causes enemies to make saving throws like wisdom or general saving ...
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