Does reducing the Purple Worm’s HP to 184 really reduce its challenge rating to 13?

On page 113 of Princes of the Apocalypse the text reads in part:

As the tremor ends, a young purple worm with 184 hit points (challenge rating 13) burrows…

No other changes to the Purple Worm’s stats are given and the monster does not appear in the Monsters section at the end of the book. This monster also shows up on DnD Beyond’s encounter builder as a CR 13 monster as "Young Purple Worm", in contrast to the CR 15 "Purple Worm".

Is taking away 63 hit points with no other changes to this monster enough to drop it two challenge ratings? I’d like to challenge, but not kill, my party.

How many enemies will challenge my party of four 1st-level characters, but not result in certain death?

I was asked to DM for a one-shot with people wanting to try and learn the game. I have created a not-too-complicated world in which they can run around and interact with its inhabitants.

The problem I face is the number and strength of foes that can be encountered. How do I prepare a challenge to the players while they learn the game? I want them to be a little afraid while still having chance of saving the town/rescuing the princess or prince/find the treasure.

  • These are completely new players, there will be 4 of them.
  • They will play level 1 characters: a paladin, barbarian, rogue and sorcerer.
  • I play a separate campaign with other people but have never been a DM before.
  • We expect to play for about 4 hours – unless everyone is having fun and wants to continue, of course.
  • Based on decisions, the enemies will be either goblins or pirates. I tend to keep these enemies around the same level.
  • I would like to introduce one “boss” in the shape of a goblin chief/pirate captain.

How many enemies, based on the information above, would make for a balanced and fun game? I don’t really want everyone to bite the dust on their first game ever, but also want to keep it interesting at the same time.

What challenge rating (‘CR’) is a Medusa given the textbook NPC-Diviner-Wizard casting ability?

I wanted to give a recurring villain / anti-hero medusa some (15th level) wizard abilities, a.k.a. the N.P.C. Diviner as featured in Vole’s or Xanathar’s or Tasha’s or somewhere. She can use this NPC class to ‘reset’ her Portent ability with every (re)cast of any 1st lvl+ Divination spell. This is handy for Petrification management for both attacks &/or mistakes.

Basic question: what is her total Challenge Rating? Clearly not 6 (‘Medusa’s CR’) + 8 (Divination Wizard’s CR) = 14 (sum total). It seems the Monster Manual, the DM’s Guide and Players Handbook (and other guides) all offer tip-suggestions – yet I remain challenged by Challenge Rating.


Why I Require This ‘True’ Challenge Rating:

With a ‘true’ medusa-wizard CR the P.C. group will:

  • gain the ‘appropriate’ treasure(s) considered fair &/or balanced;
  • also gain matching-appropriate ‘x.p.’ rewards, and;
  • (most importantly) the player-group will be slightly less bitter encountering a ‘monster’ with approximately an arch-mage’s firing power backed by with her Clone-able immortal body.

If a creature spawns more creatures during the combat, how does it affect the challenge rating? [duplicate]

I’m trying to balance a combat encounter for my players (in this example 5th lvl, 10 characters). I want to use the Sword Wraith Commander (SWC) (MTF, p. 241). The SWC has a CR of 8 but with its call to honor ability, it can summon 1d4+1 sword wraith worriors (SWW) which have a CR of 3 each. One CR 8 monster is rated as a trivial combat encounter but adding five CR 3 monsters makes it deadly.

This raises the question: Is the ability to summon up to five CR 3 monsters included in the CR 8 rating (meaning the total combat with the SWC and up to 5 SWW has a CR of 8) or do we count the CR’s independently?

What are the rules around challenge ratings for magic users and spell?

I know that different types of creature have there own challenge ratings and that different versions of the same creature also have. But what are the rules around determining NPC enemy magic user challenge ratings and do the spells I equip them with impact that rating. For instance a level 4 sorceror armed with damage causing spells vs the same sorceror with a more varied spell list some of which won’t be relevant in the combat?

I am looking for Either any specific guidelines or rules that are provided. Or proven “Home brew” rules DMs use consistently.

Certbot challenge error 404 in webroot mode

This web site runs under Apache on Windows. I installed Windows certbot client and ran it as suggested on its homepage, in webroot mode, since the web site cannot be stopped. This is what it reported:

C:\WWW\somedomain>certbot certonly --webroot Saving debug log to C:\Certbot\log\letsencrypt.log Plugins selected: Authenticator webroot, Installer None Please enter in your domain name(s) (comma and/or space separated)  (Enter 'c' to cancel): somedomain.com Obtaining a new certificate Performing the following challenges: http-01 challenge for somedomain.com Input the webroot for somedomain.com: (Enter 'c' to cancel): c:\www\somedomain Waiting for verification... ←[31mChallenge failed for domain somedomain.com←[0m http-01 challenge for somedomain.com Cleaning up challenges ←[31mSome challenges have failed.←[0m ←[1m IMPORTANT NOTES: ←[0m - The following errors were reported by the server:     Domain: somedomain.com    Type:   unauthorized    Detail: Invalid response from    http://somedomain.com/.well-known/acme-challenge/UIWHcmUsNd_4itYD5IWMLSuldIF4yzd2m9mpSH4W7a0    [2**.1**.1**.2**]: "<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML    2.0//EN\">\n<html><head>\n<title>404 Not    Found</title>\n</head><body>\n<h1>Not Found</h1>\n<p"     To fix these errors, please make sure that your domain name was    entered correctly and the DNS A/AAAA record(s) for that domain    contain(s) the right IP address. 

The certbot server does query the right IP address, so the DNS record is working fine. I suspect that it may not be creating the challenge folder/file. I tried creating the above URL manually and querying it in a browser from elsewhere, and it is being served fine. Any ideas what is missing for certbot? Keep in mind that somedomain.com is only used here for example.

Is a young black dragon enough of a challenge alone for group of five level-5 characters?

I have a 5-member party in D&D 5e (ranger, fighter, sorcerer, rogue and bard) who are all level 5. They will soon be meeting with the “big bad”, a young black dragon, in his lair which contains pools of acid. They would most likely be fully rested before the fight.

I know the CR is 7, but I was wondering whether it would prove to be a satisfying battle, in the sense that they may come close to defeat and might be able to beat the odds.

Is this fight well-balanced? Would it be challenging?

If not, should I add some hatchlings or small mobs to adjust the action economy appropriately?