103 votes
Accepted

How does DC work with natural 20?

There is no automatic success for ability checks Rolling a natural 20 only guarantees success when attempting an attack in 5e. For skill checks, a natural 20 essentially means the pinnacle of what ...
Pyrotechnical's user avatar
40 votes

What is the difference between giving advantage on a roll and reducing the DC?

Just give advantage I’ll get to the math in a minute, but the math really should be moot: there is no guidance for altering DCs based on PC actions because the point of the advantage mechanic is to ...
SevenSidedDie's user avatar
40 votes
Accepted

What is the difference between giving advantage on a roll and reducing the DC?

Mechanically, I would say the main difference is that advantage is easier and provides more stable results (As your result chances go from evenly distributed, to a favorably skewed curve). 5e favors ...
Tezra's user avatar
  • 1,453
27 votes

What is the difference between giving advantage on a roll and reducing the DC?

Advantage is the usual way DnD 5e seldom uses situational modifiers to rolls. Advantage is the usual way for the system to describe something is particularly easy because of some circumstance. ...
kviiri's user avatar
  • 54k
27 votes
Accepted

Is there a name for a single saving throw with multiple DCs (i.e. whose effect is determined based on the highest DC met)?

Dungeon Master Guide calls this Degrees of Failure or Success at a Cost The opening paragraph of the Resolution and Consequences section of the DMG (p. 243) encourages non binary results to player ...
GcL's user avatar
  • 33.5k
26 votes
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Who invented Difficulty Class?

Jonathan Tweet invented 3e’s core mechanic and its DC concept Difficulty Class did indeed make its D&D debut in 3e,1 and has been traced by Shannon Appelcline's historical work directly to ...
SevenSidedDie's user avatar
26 votes
Accepted

How to resolve "requires DC 10 Wisdom (Perception) check"?

How the Ability Check works When you look in the PHB in Chapter 7 (sub heading Skills) covering ability checks, you will find that Perception is one of five skills that use Wisdom for Ability Score ...
KorvinStarmast's user avatar
26 votes
Accepted

Automatic resolution of checks that are impossible to fail or succeed at?

From p. 237 of the Dungeon Master's Guide, under the "Using Ability Scores" header: When a player wants to do something, it’s often appropriate to let the attempt succeed without a roll or ...
V2Blast's user avatar
  • 49.7k
26 votes

How does DC work with natural 20?

The PC needs modifiers to raise that 20 to 25 or higher If you are trying to, for example, lockpick a very high-difficulty lock that requires a DC 25 and you get natural 20, do you lockpick it ...
KorvinStarmast's user avatar
26 votes
Accepted

What is the DC of the Tempest Cleric's Wrath of the Storm feature?

Cleric's Spell Save DC You are correct that RAW the saving DC is not specified. I have been unable to find any source that officially corrects this oversight. However, I think using the cleric's spell ...
linksassin's user avatar
  • 30.7k
25 votes

Does familiarity (or lack thereof) with subject modify the skill DC?

There is no right answer to this question, but there is a guideline: I don't have the DMG/PHB right now to point you the exact quote but in short: The DM decides what to roll. There are conditions ...
Manner's user avatar
  • 5,373
25 votes
Accepted

Different checks for the same action?

Yes, this is very common at most tables and is used in many official adventure modules. A situation can often be resolved with an easier check using the most appropriate skill, or a harder check using ...
Darth Pseudonym's user avatar
24 votes

As the DM, how do I handle enemy NPC Perception when the party approaches them without being stealthy?

Don't bother yourself with rolls for such things. The PCs are not hiding, the bandits have sentries, then they would automatically spot the PCs. Next time, the PCs may think about hiding... Right ...
JP Chapleau's user avatar
  • 5,452
24 votes

I'm trying to do a Charisma (Persuasion) check with no DC to compare it to!

The DC for the check is in the next paragraph the adventure is directing you to go Look at the wording: If you try to cheer Lulu up, make a Charisma (Persuasion) check. Note the result and go to B19. ...
AnnaAG's user avatar
  • 8,786
23 votes
Accepted

Is Armor Class a difficulty class (DC)?

Armor Class is also a Difficulty Class Armor Class is referenced in multiple locations as a DC. Most notably, in the rules in Equipment about AC: Your Armor Class (AC) measures how well you can ...
Ifusaso's user avatar
  • 43k
22 votes

Does familiarity (or lack thereof) with subject modify the skill DC?

DC The DC is user-independent (DMG p.238): think of how difficult a task is and then pick the associated DC from the Typical DCs table. There is no indication here that you are thinking how ...
Dale M's user avatar
  • 209k
22 votes
Accepted

For the Ring of Shooting Stars, what is the spell save DC of Faerie Fire?

You probably use your own spell save DC, but RAW is unclear The description of the Ring of Shooting Stars (DMG, p. 192) does indeed not give a spell save DC for faerie fire. It also gives access to ...
NathanS's user avatar
  • 78.9k
21 votes
Accepted

If a fighter learns the Command spell from the Fey Touched feat, what is the spell save DC?

It uses your spell casting ability like other spellcasters The last line of Fey Touched says: The spells' spellcasting ability is the ability increased by this feat. So that can be your Intelligence,...
MivaScott's user avatar
  • 39.8k
20 votes
Accepted

Is the DC table applied to characters with or without proficiency?

The rules assume you are not proficient To quote page 239 of the DMG: [...] Keep in mind that a character with a 10 in the associated ability and no proficiency will succeed at an easy task around 50 ...
Exempt-Medic's user avatar
  • 75.8k
19 votes
Accepted

Which spell save DC to use for a Staff of the Magi for a multiclass Eldritch Knight/Sorcerer?

You choose which spellcasting ability to use! The Sage Advice Compendium (or here in D&D Beyond) addresses a similar question about the hat of disguise magic item (which lets you cast a spell from ...
He Who Rules As Intended's user avatar
19 votes

How do I set DCs for attempted grappling kills?

There's no "DC" for either of those, any more than there's a DC for killing an enemy in combat with a sword. Instead, there's grapple checks (like AC) and damage rolls that progress toward death or ...
user17995's user avatar
  • 5,172
19 votes

What's the difficulty class for the paladin's Channel Divinity: Nature's Wrath?

The DC for Channel Divinity abilities is described in the main description for your Sacred Oaths, in your list of class features. Specifically, it's: Some Channel Divinity effects require saving ...
Erik's user avatar
  • 80.7k
19 votes
Accepted

How can I determine the spell save DC of a monster/NPC?

DC 11 The Monster Manual entry for the Drow states under Innate Spellcasting (emphasis mine): The drow’s spellcasting ability is Charisma (spell save DC 11). It can innately cast the following spells,...
NotArch's user avatar
  • 125k
18 votes

How do spells that require an ability check vs. the caster's spell save DC work?

Your analysis is correct (mostly). Minor illusion is a good example of this. The text (PHB 260) says: ... the creature can determine that it is an illusion with a successful Intelligence (...
Blake Steel's user avatar
  • 7,202
18 votes
Accepted

If the Dragon's Breath spell is cast on a familiar, does it use the wizard's DC or familiar's DC?

It is the spellcaster's spell save DC The DC to resist one of your spells equals 8 + your spellcasting ability modifier + your proficiency bonus + any special modifiers. (PHB - Saving Throws) So the ...
Rubiksmoose's user avatar
  • 94.2k
18 votes
Accepted

Is the Undead Fortitude trait's DC based on damage dealt or damage taken?

If the zombie has resistance or vulnerability to the attack, the DC is calculated by the final damage amount. From PhB: Resistance and Vulnerability For example, a creature has resistance to ...
Tim C's user avatar
  • 9,683
18 votes
Accepted

How do I convert the DC of a check from AD&D 2E to 5E?

Your best bet is to rebuild the hazard from scratch using the 5e rules. Wizards, when they first published 5e, also released a handy Conversion Guide, with details about converting characters, ...
RevanantBacon's user avatar
17 votes

Are there any ways to raise a character's saving throw DC past just ability score and proficiency bonus?

The only other official way to boost your spell DC (without just boosting your ability score) is the Robe of the Archmagi, a crazily powerful legendary item. The Lore Mastery Arcane Tradition, from ...
Miniman's user avatar
  • 144k
17 votes

Are there any ways to raise a character's saving throw DC past just ability score and proficiency bonus?

Tasha's Cauldron of Everything introduced several new class-specific magic items that do this Tasha's Cauldron of Everything has several magic items which give bonuses to spell save DC. Most notably ...
Kamil Drakari's user avatar
17 votes

How can I determine the spell save DC of a monster/NPC?

DC 11 Typically a spell save DC is 8 + spellcasting ability modifier + proficiency bonus (PHB p205). In the case of the Drow that would be 8 + 1 + 2 = 11. Proficiency bonus is based on the creature's ...
CasualViking's user avatar

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