D&D 2024 Monster Guide: Stat Blocks and Monsters

Introduction

The 2024 Monster Manual is built to run monsters, not read about them cover to cover: a short front-matter section explains how a stat block works and how to run one at the table, then hundreds of pages of alphabetical stat blocks make up the bulk of the book, and a back-matter appendix sorts all of them by habitat, creature type, group, and Challenge Rating. This guide covers the two parts a DM actually needs explained - reading a stat block and finding the right monster - and leaves the stat-block catalog itself to the book, where it belongs.

For building the encounters these monsters go into, see the DM's Toolbox guide's Creating a Creature section for reskinning an existing stat block, and the Running the Game guide for running combat once monsters are on the map.

Parts of a Stat Block

Every monster's stat block breaks into the same parts, in the same order, whether it's a CR 0 rat or a CR 30 tarrasque:

Reading Each Part

Size and creature type. A monster is Tiny, Small, Medium, Large, Huge, or Gargantuan; if a stat block offers size options, you pick from those. Creature type (Aberration, Beast, Celestial, Construct, Dragon, Elemental, Fey, Fiend, Giant, Humanoid, Monstrosity, Ooze, Plant, or Undead) matters because spells, magic items, and class features sometimes key off it directly. Descriptive tags in parentheses after the type add further categorization with no rules of their own, though some game effects reference them.

Alignment. The listed alignment is a roleplaying default, not a hard rule - it's there to suggest a starting attitude (a Chaotic Evil monster leans Hostile in an encounter, a Lawful Good one leans Friendly) and you're free to change it to fit your story.

Armor Class. Includes the monster's natural armor, Dexterity, gear, and any other defenses baked into one number.

Initiative. Listed as a modifier followed by a fixed Initiative score in parentheses - roll the modifier normally, or skip rolling and use the printed score directly if you'd rather not roll for every monster in a fight. The modifier is usually just the monster's Dexterity modifier, though some monsters add more (Proficiency Bonus, for instance).

Hit Points. Given as a flat number followed by a die expression in parentheses (Hit Dice plus any Constitution contribution) - use one or the other, never both. Hit Dice size scales with the monster's size, from a d4 for Tiny creatures up to a d20 for Gargantuan ones, and a monster's Constitution modifier is multiplied by its number of Hit Dice before being added to the total.

Skills, Resistances, Immunities, Gear. Skills list proficiency bonuses to specific checks (a monster's relevant ability modifier plus its Proficiency Bonus, sometimes with other modifiers layered on). Resistances and Vulnerabilities work as in the Player's Handbook. Gear lists equipment that can be taken or retrieved from the monster if it's defeated - it isn't a complete inventory, and anything described outside the Gear entry (a dragon's breath, an innate spell) is treated as supernatural and unusable once the monster is down.

Challenge Rating and Proficiency Bonus. A monster's CR sets both its XP value and its Proficiency Bonus, which scales in bands: CR 0-4 gets +2, CR 5-8 gets +3, CR 9-12 gets +4, CR 13-16 gets +5, CR 17-20 gets +6, CR 21-24 gets +7, and CR 25-28 gets +8, topping out at +9 for CR 29-30. The Monster Manual's Experience Points by Challenge Rating table converts CR straight to an XP award for defeating or otherwise neutralizing the monster.

Traits, Actions, Bonus Actions, Reactions, Legendary Actions. Traits are always-on or situational characteristics. Actions are what the monster does on its turn beyond the universal actions every creature can take. Multiattack, when present, spells out the full set of attacks (and any extra abilities) a monster gets from a single Attack action. Bonus Actions, Reactions, and Legendary Actions each get their own section only if the monster has options there - Legendary Actions in particular can be taken right after another creature's turn, only one at a time, and refresh fully at the start of the monster's own turn.

Limited-use abilities. Two notations show up constantly: X/Day means an ability can be used a set number of times before the monster needs a Long Rest to get it back, and Recharge X-Y means the monster rolls 1d6 at the start of each of its turns and regains the ability on a roll in that range (also recharging on a Short or Long Rest).

Running a Monster

The Monster Manual gives three rules of thumb for keeping a monster fighting at its printed Challenge Rating instead of underperforming it:

1. Use limited special abilities early and often. A recharging breath weapon or a once-per-day spell should come out as soon and as frequently as possible, not held in reserve.
2. Default to Multiattack. On any turn where the monster isn't using something more powerful, have it Multiattack.
3. Spend everything it's got. If the stat block includes Bonus Actions, Reactions, or Legendary Actions, use them as often as the monster legally can - a monster that never spends its Reaction is fighting under its CR.

Monster Entries Beyond the Stat Block

Most individual monster entries in the book carry a few things beyond the stat block itself. A Habitat line notes where the monster typically lives (used to build the habitat lists in Appendix B). A Treasure line tells you whether the monster hoards treasure at all, and if so what kind: Any (money and any magic items), Individual (money only, no hoard), a named Treasure Theme such as Arcana, Armaments, Implements, or Relics (the Dungeon Master's Guide details what each theme includes), or None. Some entries also include a lair section describing regional effects the monster causes nearby, or ways it gets stronger while fighting on its home ground.

Arcana Unleashed: Magical Creature Reference

Arcana Unleashed adds magical creatures and NPC-style threats that can put arcane pressure on a campaign without requiring a new monster catalog here. Its Chapter 6 includes archmages associated with the eight schools of magic, the lore-guarding baelnorn, magical creations such as darkenbeasts and groundlings, living spells, spellguards, the ascended mage called a taisus, and Venger. Use the book for each creature's complete entry, including its stat block and any optional material.

Start with the creature's job in the adventure. An archmage can guard knowledge or represent a faction's method; a baelnorn can protect a place the party needs to understand; a living spell can show the aftermath of magical failure; and a spellguard can make a patron or rival feel prepared before initiative begins. Those are framing choices, not encounter rankings or substitutes for the sourcebook's mechanics.

For the campaign decisions that make those appearances recur, use the D&D 2024 Creating Campaigns guide and the Arcana Unleashed magical factions guide. The Arcana Unleashed overview explains the book's wider DM-facing material. This guide does not reproduce Arcana Unleashed creature statistics, rank its creatures, or replace its entries.

Finding Monsters: Appendix B

Appendix B: Monster Lists sits at the back of the book and sorts every stat block four different ways, matching whichever question you're actually asking:

Within each habitat or type list, entries are further broken out by CR, so you can cross-reference "what lives in a swamp" against "what a level-3 party can handle" in one pass.

Appendix A: Animals is a separate stat-block appendix of real-world-style creatures (Baboon, Eagle, Mastiff, and similar) - useful less as monsters to fight and more as a ready-made resource for reskinning: a wolf's stat block dressed up as a hyena, a hawk standing in for a smaller bird of prey. See the DM's Toolbox guide's Creating a Creature section for the rules on reskinning any stat block further.

Ravenloft: Denizens of the Mists

Ravenloft: The Horror Within (Ravenloft) adds a chapter of horror-specific monsters and monster-hunting NPCs, plus DM technique for making any stat block scarier at the table: unique-origin framing for a campaign's central threat, unsettling or conflicting descriptions instead of a monster's plain name (a "zombie" reads as generic, but "a stumbling mass of fetid skin and shattered bones" doesn't), and withholding a creature's identity to let players speculate before they see a stat block.

New creatures include several Vampire variants (a base Vampire plus Nosferatu and Mind Flayer takes on the bloodline), the Relentless Killer family (Slasher, Nightmare, and Juggernaut versions built for horror-movie-style chase encounters), the Strigoi, Star Spawn Emissaries (Lesser and Greater), the Strahd Skeleton, and multiple insect swarm variants. The chapter also details recurring NPCs a horror campaign can use as allies or rivals, including the monster hunter Rudolph van Richten and the Weathermay-Foxgrove twins, plus stat blocks for the book's own Haunted One, Investigator, Mist Wanderer, and Spirit Medium backgrounds as ready-made NPCs. For the player-facing versions of those four backgrounds, see the D&D 2024 Backgrounds Guide (Ravenloft).

For the full Ravenloft setting these monsters haunt, see the Ravenloft hub.

Converting 2014 Monsters

Every monster from the 2014 Monster Manual either reappears in the 2024 book under the same name or has a Challenge-Rating-appropriate replacement. If you're running an older adventure and can't find a monster's name in the 2024 index, Appendix B's Stat Block Conversions table pairs the old name with its current equivalent - for example, Bugbear now points to Bugbear Warrior, Androsphinx points to Sphinx of Valor, Azer points to Azer Sentinel, and Adult Blue Dracolich points to the 2024 Dracolich stat block. The table runs long (it covers the full 2014 roster), so treat it as a lookup reference rather than something to memorize - reach for it only when you're converting old material and the exact name has changed.

Related Guides

Return to the Dungeon Master Guides hub for the full 2024 DMG chapter map. See the DM's Toolbox guide for reskinning and building custom creatures, and the Running the Game guide for running the combat these monsters drop into.