This tag covers questions relating to either monstrous antagonists specifically, or all enemies of the player characters generally; which usage is correct varies depending on the traditions of specific games. Use as appropriate for the game in question.

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4
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1answer
137 views

How does Pathfinder Dire Crocodile death roll work?

The perfect opportunity arose for my players to encounter a dire crocodile, but as I have been preparing for the encounter, I have been a bit confused as to how to interpret the death roll rules. The ...
8
votes
3answers
1k views

Does Phantasmal Killer affect creatures immune to being frightened?

Phantasmal Killer (PhB p. 265, emphases mine): You tap into the nightmares of a creature you can see within range and create an illusory manifestation of its deepest fears, visible only to ...
0
votes
2answers
237 views

What Process do Mimics go though when they Shapeshift?

While a Mimic is in its true form, how does it polymorph into new objects? Does it naturally morph into them? Dissemble an existing one an build it around itself? or magically flash into the chosen ...
14
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2answers
1k views

What is a mimic's “true form”?

The D&D 5E Monster Manual's entry for mimics it mentions that it "reverts to its true form when it dies." I'm assuming a chest isn't its true form. What actually is its true form?
-3
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2answers
146 views

Could a mimic imitate a door?

Mimics are obviously most renowned for taking the forms of chests. However, after hearing that they can polymorph into other furniture, I wonder do doors become a possibility? If yes, what are the ...
5
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2answers
730 views

Can I get Experience Points from defeating a Phoenix?

As AD&D's Phoenix never dies, can you ever get experience points for defeating it?
5
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1answer
170 views

If a character has the Chaos Phage disease cured before transformation, do they regain their HP?

Page 276 of MM States: While infected, the target can't regain hit points, and its hit point maximum is reduced by 10 (3d6) every 24 hours. If the disease reduces the target's hit point ...
6
votes
1answer
140 views

When a Yuan-Ti or Slaad shapechanges, do they retain their class abilities?

The MM on page 277 states: It's statistics, other than its size, are the same in each form. Does that mean that their abilities (spellcasting, resistances, etc.) retain as well or just the ...
6
votes
1answer
147 views

How do legendary and/or lair actions affect the CR of a creature I am creating?

I want to create a "boss and minions" encounter for my low-to-mid-level party, and I love the idea of legendary and lair actions as a way to give the encounter an appropriately "epic" feel. Problem ...
4
votes
2answers
286 views

Is my homebrew lower-powered Lich's CR calculated correctly?

I created a "Lesser Lich" so my party would be able to fight something interesting in the story I have. In my game, a lich undergoes development changes the first time it "ascends(descends) to ...
3
votes
1answer
73 views

Does Gaining a Second Natural Attack Decrease My Primary Attack Damage?

I have a Ogre Spider that gained the Slam attack thanks to a template. The Ogre Spider has only one natural attack by default, but what I wonder is whether the Bite loses the 1½ Strength mod ...
2
votes
0answers
127 views

Reverse engineering the Hydra CR

There is no info on the hydra traits "multiple heads", so i'm trying to reverse engineer it, here are my thoughs. Effective attack CR 8: Five attacks (1 per head), 10 damage each for an average of ...
7
votes
1answer
459 views

What kind of creature is a pre-Medusa?

In the 5e Monster Manual Medusa entry, it notes that before turning into a Medusa creatures live "like a demigod among mortals," and they possess "physical beauty, restored youth, immortality, and the ...
9
votes
2answers
232 views

Does a dryad's Tree Stride ability provoke opportunity attacks?

Tree Stride. Once on her turn, the dryad can use 10 feet of her movement to step magically into one living tree within her reach and emerge from a second living tree within 60 feet of the first ...
4
votes
2answers
158 views

Does a spellcaster know when their spell has no effect?

Suppose a cleric casts Zone of Truth on a captured enemy. Unbeknownst to them, the enemy is a raksasha. Zone of Truth says (PHB, p. 289): You know whether each creature succeeds or fails on its ...
4
votes
2answers
111 views

Can a Stone Child, Half Dragon, or Killoren be infected with lycanthropy?

My campaign is eldritch and fantasy and there is a werewolf clan currently near the party. My players have said that they're immune to lycanthropy because of their PCs' races: A Stone Child. He says ...
4
votes
2answers
141 views

How do I create a custom monster to challenge my lvl 8-9 party? [closed]

I have been running a campaign now for roughly six months (we meet up twice a month). I currently have my party hunting for 5 dwarvish bells to bring a part of a floating city down to collect it the ...
2
votes
2answers
543 views

Is there a playable correlation between CR and level in 5e?

Let's say that I'm about to run a combat-heavy 3rd level one-shot for a group of players. Balance and challenge rating is still very important, but one of my players says he'd like to play a humanoid ...
10
votes
2answers
1k views

Are there faeries in 5e?

I'm currently doing a bit of a "Fairy of the Fountain" encounter in my game, and the only thing I need now is a reliable stat block for the fairy. You know... just in case. I opened up the Monster ...
8
votes
3answers
858 views

How can I make a monster weaker?

So I am DMing an open world campaign and my players are heading into this old ruins infested with undead. So far so good, I made the map, random encounters, traps, monsters, treasure. I have decided ...
0
votes
2answers
92 views

Multiheaded Monsters [closed]

Does anybody have a complete list of all multiheaded Monsters in DnD 3.5e? We got a vague description of a "multiheaded beast" from a witness in our current campaign and I'm trying to figure out what ...
6
votes
2answers
185 views

What can a Succubus do in the ethereal plane?

The question is regarding the succubus action etherealness Etherealness. The fiend magically enters the Ethereal Plane from the Material Plane, or vice versa. MM 285 While the succubus is in ...
6
votes
2answers
157 views

How much does Petrification Ray modify a monster's CR?

I'm working on a custom monster right now and I want to give it a Petrification Ray, as seen on the Beholder, as an action: Petrification Ray. The targeted creature must make a DC (8+Spellcasting ...
7
votes
1answer
229 views

What's the difference in lore content between the editions' Monster Manuals?

I own the 5E Monster Manual. I also have the Monster Manual I, code number 2009 from 1E. I can see the difference between these two versions but I don't know what the other editions' Monster Manuals ...
10
votes
1answer
173 views

Dealing with fractional CRs in the table on DMG 274

This has been driving me crazy as I've been trying to create monsters and NPCs for my characters to encounter in D&D 5th Edition. Say I've got an NPC with 48 hit points and Armor Class 16. That ...
3
votes
2answers
164 views

How to modify a bulette to challenge a level 10 party?

In my campaign, the PCs have been tasked with removing a group of bulettes from a mining claim. I plan on using standard bulettes as a lead-up to a 'boss fight' where I would like a larger (perhaps cr ...
8
votes
1answer
348 views

What source contains a vehicle made from a dead beholder?

A vehicle created from the corpse of a beholder, with the main eye and organs removed to make room for a pilot's seat, was published somewhere in 3.5 or 3ed Dungeons & Dragons. Does anyone know ...
8
votes
1answer
331 views

Can a basilisk turn another basilisk to stone?

Can a basilisk turn another basilisk to stone with its petrifying gaze? If yes: then I imagine that around any basilisk herd there should be many petrified basilisks. If no: then I'm thinking that ...
1
vote
1answer
95 views

What book describes consuming vials of vampire blood to pseudo-Rage?

I know I've ran across this in one of my 3.5 books recently and I cant remember the book or much about it, and am having trouble re-locating this. There was an entry towards the front of the book for ...
5
votes
2answers
446 views

Are Demons and Half-Fiends considered Evil Outsiders for Favored Enemy?

Favored Enemy: Outsider(evil) is slightly confusing to me personally because when you look under fiends and demons the succubus is under both. Which demon is under outsider(evil) is this an exception ...
3
votes
1answer
196 views

Are there sourced statements about what inspired the D&D Demogorgon visuals

Wikipedia states: Demogorgon is based on the invented, supposedly pagan god or demon Demogorgon, which was first spoken of by Christian scholars as a being whose very name is taboo. A creature ...
5
votes
1answer
103 views

Is an animated object destroyed when it “dies”

When an object is animated as per the "Animate Object" spell, or a similar effect, it effectively becomes a creature. This creature is listed in the Monster Manual as an "Animated Object". What ...
20
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2answers
524 views

Tarrasque: Rush & Jump Skill Interaction

Background I am having a little trouble wrapping my brain around the Jump skill. I want to plan a battle with my players and the Tarrasque; two of them have the ability to fly - and it does not. I ...
13
votes
1answer
395 views

Can animated dead have weapons and armour?

If I have put the time into creating some skeletons or zombies using the spell Animate Dead. Kept them active expending 3rd level spell slots can I equip them with items, like armour and weapons? ...
12
votes
2answers
237 views

Do PCs facing a group of harpies have to make multiple saving throws against their song?

Do PCs facing a group of harpies using Luring song at the same time make a wisdom saving throw for each individual source of the melody or is it a single roll, considering it's the same ability? Here ...
9
votes
1answer
804 views

Does a PC transformed into a slaad retain their mind, stats, and class abilities?

If the blue slaad hits you with his claws and you fail the save, what will happen for the PC when they are transformed into a green or red slaad? Will they keep their own personality, or will they ...
12
votes
1answer
136 views

Do giant-kin have a specific place in the Ordning?

In 5th Edition, the word Ordning refers to the hierarchy of the various breeds of giant. Among the so-called 'true' giants this order goes, from highest to lowest: Storm giants, Cloud giants, Fire, ...
5
votes
2answers
478 views

How can an object hide the fact that it is Animated?

I am currently designing an encounter with an animated ship carrying a massive cargo of animated objects. However, the entire thing loses its magic when all that a player needs to do in order to ...
2
votes
1answer
101 views

How can Constructs use Magic?

In Pathfinder I am currently trying to design a few encounters with a supposed ghost ship (actually a Colossal Animated Object) complete with a crew of Haunted Objects (again, Animated Objects), but I ...
3
votes
1answer
105 views

Can an animated cannon fire itself?

In Pathfinder I am currently trying to design a few encounters with a supposed ghost ship (actually a Colossal Animated Object) complete with a crew of Haunted Objects (again, Animated Objects), but I ...
3
votes
1answer
98 views

What is the space size of a Colossal Animated Ship?

In Pathfinder I am currently trying to design a few encounters with a supposed ghost ship (actually a Colossal Animated Object) complete with a crew of Haunted Objects (again, Animated Objects), but I ...
2
votes
1answer
237 views

How would removing tail spikes from a manticore affect its challenge rating?

One creature omitted from the 5th Edition MM is the Dragonne, and I have considered modifying stats for the manticore to create a 5E dragonne. Most of the changes would be cosmetic except for removing ...
13
votes
2answers
821 views

What language is reasonable for a Roper to speak or understand?

I'm DMing a published 5e campaign that has a Roper in it. The campaign book tells me... This seems all well and good, except in the monster's stat block its language is listed as '—', which I ...
14
votes
2answers
225 views

What happens to active spells on a black pudding when it splits?

Bob the wizard and his chums have encountered a black pudding and Bob has cast Slow on it to give him some time to run for it. However, helpfully, the next round the parties tank, Kevin the Barbarian, ...
1
vote
1answer
247 views

Some creatures have unbelievably high ACs in the 40s, but how is that even possible to hit? [closed]

I'm looking at creatures in the d20 SRD and seeing monsters that have really high AC, like 45. Is that the correct AC or is it supposed to be something else? And if it is correct, then how is anyone ...
8
votes
1answer
123 views

How to travel through a Thoqqua's tunnel?

In the 3.5 monster manual, it states It burrowing leaves behind a usable tunnel, albeit a small one with blistering hot walls. What does this mean in terms of game-rules? Would a medium creature ...
8
votes
3answers
405 views

Do monster stat blocks already include their feats' effects?

When looking up any monster in any manual, are the stat blocs modified relative their feats, or must you modify them yourself? (Example weapon focus gives +1 to att. roll) At the moment, I am DMing ...
6
votes
2answers
141 views

Do Charm/Hold Person or psionic equivalents work on Lycanthropes?

Is a Lycanthrope affected by Charm/Hold person or similar psionic powers? I see that it has the Shapchanger subtype, but I don't know what that implies here. Does that mean a human infected with ...
2
votes
1answer
54 views

What is a hit die, and how do I calculate monster HP? [duplicate]

I'm new and have the AD&D Monster Manual and Fiend Folio. I want to know how to calculate monsters' HP. Does 4 hit dice mean 4 HP, or 4 rolls of a die, and how do I know what die to roll if it is? ...
36
votes
2answers
5k views

What makes the Monstrous Crab so dangerous?

It was recently mentioned that the Monstrous Crab is generally capable of wiping out even a powerful 3rd level party. It seems to me that, lacking any anti-ranged capability whatsoever, it is ...