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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1answer
268 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
141 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
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3answers
428 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
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2answers
157 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
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1answer
71 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? ...
40
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2answers
6k 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 ...
5
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1answer
841 views

When do monsters need to breathe?

I've been doing some work on monster design, and stumbled on a weird problem with monsters needing to breathe. In my current monster write up, I don't intend for breathing to be something that is ...
5
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1answer
941 views

What are the racial traits for mind-flayers?

I'm planning on making a Mind-flayer character for D&D 5e and need their traits. I need to know special abilities, stat modifiers, and other things needed for character creation. A site that ...
5
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1answer
211 views

What are Metal Kobolds?

I've recently purchased the Monster Codex for Pathfinder and found an interesting passage in the introduction to Kobolds. It reads that in rare cases, there are those born with metallic scales that ...
1
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1answer
69 views

Leveling up a creature from the Pathfinder Bestiary

I have been running a game for the first time and have generally had an experienced GM on hand to help (never done this before). I have an encounter coming up (it pretty much will be the very next ...
8
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3answers
1k views

Are there official stats for an Illithid “Elder Brain”?

During an episode of Critical Role, the PCs battle an Illithid Elder Brain. I tried to find out more about this creature for possible inclusion in a campaign, but it barely has a mention in the ...
9
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1answer
427 views

Can you kill a gargantuan monster from within?

Imagine that a party manages somehow to get inside a dragon turtle without injury to themselves (we have some plans using magic, but that's not part of the question). Once inside, could you kill it ...
2
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1answer
224 views

Is Multiattack included in the actions a new lycanthrope gains?

In the Monster Manual p.206, it is written: A character who becomes a lycanthrope retains his or her statistics except as specified by lycanthrope type. The character gains the lycanthrope's ...
24
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4answers
7k views

Are Legendary monsters in the Monster Manual ever able to be defeated?

I'm starting my first 5e campaign soon and I'm just learning about balancing encounters. While looking up challenge ratings I noticed a very troubling truth: Of 30 challenge levels in the Monster ...
4
votes
1answer
247 views

Can becoming a familiar make an improved familiar stupider?

The feat Improved Familiar (DMG 200) says that Improved familiars otherwise use the rules on page 52 of the Player’s Handbook, with two exceptions: If the creature’s type is something other than ...
9
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2answers
403 views

Whence the large difference in power between ogres and hill giants?

Ogres and Hill giants are both of Giant type and are described as very similar height: 9–10 feet for ogres, 10½ feet for hill giants (and they're both of Large size category). Yet their ...
3
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2answers
350 views

Why are constructs so hard to build?

Golems and other constructs have a long history in Dungeons & Dragons and its spinoffs, but, almost invariably, it's extremely difficult for PCs to create them, and they often have varying ...
15
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1answer
1k views

How does a Vampire Spawn become a Vampire?

I was looking at the Vampire and Vampire Spawn entries in the monster manual, and a little blurb in the green box next to Von Zarovich's note talks about player characters becoming vampire spawns, ...
12
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2answers
1k views

If a body being possessed by a ghost is targeted by a charm spell, who gets affected?

Let's say a ghost possesses somebody and then the party wizard casts charm person on the body. Is the ghost affected by the charm, or is the body? And if the body is, does it limit the ghosts ability ...
5
votes
1answer
575 views

Is the HP in a Pathfinder monster stat-block the average HP or a base HP?

I'm a new GM and after running a session where two named NPCs were defeated before even having a turn I started to question if I was doing something wrong. One of my players (who GMs as well) asked ...
5
votes
1answer
833 views

Is a Gorgon's Petrifying Breath a poison attack?

I have a feeling that this is a DM fiat question, but the Gorgon has an action for "Petrifying Breath" that causes petrification if recipient fails two con saves. My question is whether or not this ...
21
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2answers
2k views

What does a doppelganger smell like?

One of my players got the (fun) idea that her character could be able to smell the difference between a doppelganger copy and the real person. She's a shifter, so in theory she has an excellent sense ...
7
votes
1answer
348 views

How do I calculate a monster's damage output per round for breath weapons?

When creating a monster, on DMG p. 274 I am instructed to "Read down the Damage/Round column... until you find your monster's damage output per round." So how do I figure that? Is it just the damage ...
7
votes
2answers
143 views

Does a black dragon's Corrupt Water (Su) affect Alchemists' extracts?

Talking with my friends about the "alchemy" of the Alchemist class, we're fighting about the alchemist extracts. Look at this description: Extracts are the most varied of the three. In many ways, ...
3
votes
2answers
379 views

Goblin's Challenge Rating and Nimble Escape

So I'm trying to tinker with a few custom monsters and decided to give one Nimble Escape. As a reference, I tried to see how nimble escape interacts with creatures that already possess this ability: ...
5
votes
2answers
270 views

Monster Space and German “Angriffsfläche”

Looking at the rules for various monsters, in the german prd (prd.5footstep.de) some monsters have a property called "Angriffsfläche". After looking at english entries for monsters, I am confused ...
7
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1answer
286 views

Does a doppelganger who's replaced a PC get their stats for rolls?

I'm running a mini campaign within a normal campaign, which has a different DM. The regular DM has a PC of their own and we, as a group, thought it would be fun to let the DM really play their ...
2
votes
1answer
208 views

How do I calculate encounter difficulty for PCs with allied monsters? [duplicate]

I'm currently running a mega dungeon in 5e D&D, and my players have recruited some monsters into their service. I have been building encounters using the dungeon masters guide rules (pg. 81-84), ...
3
votes
2answers
315 views

False Appearance, Movement, Surprise, and the Unseen Attacker bonus

Related to How should I implement False Appearance? but that does not answer my questions about surprise and movement... A Darkmantle has the "False Appearance" property which allows it to be ...
7
votes
1answer
247 views

How is the save DC for a Half-Dragon's breath weapon calculated?

The Half Dragon template in D&D 5e states that, "The half-dragon has the breath weapon of its dragon half" though the sample given has a different save DC (15) than the wyrmling (13) it is based ...
18
votes
3answers
2k views

Ogre CR calculation: is it wrong or am I missing something?

My question is about the basic ogre CR calculation in the monster manual, which doesn't make senses to me. I tried to make a concept of an "armored ogre" with chain mail and pikes (AC 16 and 15 ...
10
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3answers
509 views

How do you “safely” imprison a Lich?

Let's say in a world like Eberron, with a prison like Dreadhold, how would you go about keeping a Lich prisoner if you don't want it to die and escape to its secret phylactery? I mean can a Lich kill ...
8
votes
1answer
610 views

Why do Hill and Frost Giants have a bigger damage bonus than their Strength bonus?

In the D&D 3.5 Monster Manual, a Hill Giant's damage entry shows: Greatclub +16 melee (2d8+10) A Hill Giant's strength bonus is +7. Since there doesn't appear to be any magic abilities or ...
11
votes
4answers
939 views

Can you safely wear animated armor?

Assume a team of my players defeated an Animated Armor, which broke apart. One of the players states that if it is armor, than he can take it and use it. DM decided that the armor is damaged and ...
3
votes
1answer
283 views

Does a Rust Monster's Rust (Su) apply to other kinds of touch attacks it makes?

I have a rust monster with the Greater Trip and Fury's Fall feats and the ability to cast a handful of spells, which opens up some situations I've not seen before. If I make a trip attempt with a ...
5
votes
2answers
329 views

Where can I find Bullywug lore?

In D&D 4th Edition (the edition I play), Bullywugs are featured in the Monster Manual 2. However, the lore about them in this book is very thin, barely touching n anything about the race itself. ...
10
votes
2answers
540 views

How would a Kobold's challenge rating be affected if I gave it a cantrip and a resistance?

I want to create a version of a Kobold that has the Ray of Frost cantrip, as well as resistance to cold damage. How would this affect the challenge rating of the monster? A normal kobold is CR 1/8. ...
4
votes
2answers
190 views

Can a vampire use a Headband of Ferocity to avoid turning gaseous at 0 HP?

Does a vampire that's using a headband of ferocity (S&F, p. 77) get to not automatically turn gaseous when reduced to 0hp, so they can then do something else like quaff an inflict potion, rather ...
11
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2answers
912 views

What is the alignment of a Gold Shadow Dragon?

What alignment are Gold Shadow Dragons? I recently purchased a miniature booster box and inside I found a Gold Shadow Dragon and have not been able to find any sources that describe its alignment. ...
3
votes
1answer
194 views

How can I boost the AC of a ghost dragon?

I am in the process of making a ghost dragon as a challenge for a mythic campaign, with a party of a druid, an alchemist, and a paladin. Applying the ghost template drastically reduces its AC from ...
12
votes
1answer
500 views

What book contains this antlered humanoid fey?

In one of the later Monster Manuals, there was a Fey called something like "Master of the Forest" It took the form of a human male with antlers. Can anyone confirm or correct the name and tell me ...
8
votes
2answers
155 views

How to do mobs of monsters with class levels?

The level 11 PCs are going to raid a tower/school filled with low-level wizards/clerics/fighters of a variety of races and levels. Is there a more elegant way to simulate the massive amount of ...
3
votes
3answers
1k views

Drow, poison, and the lack thereof

In editions past, Drow are pretty well known for using poison. It's just "who they are". While playing some 5e and creating a side mission I thought, "I will add some Drow since they use ...
5
votes
1answer
445 views

How to kill a Boneleaf in D&D 3.5?

The Boneleaf is a monster in Heroes of Horror, D&D 3.5 page 143. The creature that the party generally encounters is actually a part of a much larger, subteranean monster that has 1D6+6 other ...
7
votes
1answer
186 views

Can a ghost see through the Darkness spell?

The description of the Ghost says: Ethereal Sight: The ghost can see 60 feet into the Ethereal Plane when it is on the Material Plane, and vice versa. And also It is visible on the Material ...
10
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2answers
464 views

Does a beast without Multiattack have to choose only one attack to use?

I'm comparing Giant Badger (MM, p. 323) to Panther (MM, p. 333), with my druid's Wild Shape in mind. A Giant Badger has Multiattack, Bite and Claws. A Panther has Bite and Claw. Since Multiattack ...
21
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3answers
3k views

What is the history of vampires having high natural armor class?

Based on this question to Order of the Stick #1002 featuring combat between the main protagonist and a vampire, I wonder what is historical motivation for D&D vampires being tough to hit, not ...
4
votes
2answers
937 views

How to summon an Invisible Stalker?

In the Monster Manual you can find the lore on this matter: Invisible stalkers are creatures native to the Elemental Plane of Air. They sometimes serve wizards and sorcerers, who summon them to ...
6
votes
1answer
432 views

Are any creatures in 5e immune to all disease according to the manuals?

In fifth edition D&D, do any of the manuals specify that a creature (besides players) can be immune to all diseases or is this left up to DM discretion? Say for example that the party comes up ...
14
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4answers
3k views

Why are Solars so powerful compared to other Outsiders in D&D?

Going through a number of D&D books that feature the Solar I noted that it is amongst the most powerful monsters in the book, frequently only matched in level and power by the likes of the ...