Iron Scent
The rust monster can pinpoint ferrous metal within 30 feet.
Rust Monster 5e reference with CR 1/2, type, stat block details, token resources, terrain tools, fear hooks, and monster hunt generation.
An insectoid creature the size of a large dog with a long tail ending in a feathery antenna. Its chitinous carapace is rust-colored, its head is triangular with two hornβlike feelers that corrode metal, and it has mandibles for gnawing iron.
Quick 5e Answer
Rust Monster is a CR 1/2 monstrosity for D&D 5e. This page includes AC 14, HP 27 (5d8 + 5), a ready stat block, a downloadable PDF, and connected encounter tools.
Official SRD 5.2.1 Stat Block
Medium, Monstrosity, Unaligned
This stat block uses official SRD 5.2.1 content under CC-BY-4.0 attribution.
The rust monster can pinpoint ferrous metal within 30 feet.
A nonmagical ferrous metal object that hits the rust monster or is touched by it corrodes.
Melee Attack Roll: +3, reach 5 ft. Hit: 5 (1d8 + 1) Piercing damage.
The rust monster corrodes one nonmagical ferrous metal object it can see within 5 feet.
Base + optional customizer
Base + optional customizer
Note: These resource links work best when you are logged in to ChatGPT in your browser.
Rust Monster 5e reference: CR 1/2 monstrosity, AC 14, HP 27 (5d8 + 5), PDF sheet, token, portrait, terrain, fear hooks, and hunt tools for Underdark, Dungeon. This page is part of the complete Monster Almanac stat block library. It includes a official srd 5.2.1 stat block with a downloadable PDF sheet, plus connected prep tools. Use this Monster Almanac page to move from search result to table prep: read the quick 5e reference, open the stat block, download the PDF when available, generate a token or portrait prompt, build matching terrain, create a monster-bound fear hook, and turn Rust Monster into a focused hunt.
Rust Monster can be used in Underdark, Dungeon when you want a CR 1/2 monstrosity that helps shape combat pressure, exploration tension, or narrative danger.
Rust Monster works well as a supporting threat, recurring danger, or encounter-building piece inside a larger scene.
The attached official srd 5.2.1 stat block gives you a table-ready rules reference, and the PDF button keeps the sheet easy to print or save before the session.
This makes Rust Monster useful not only as a monster reference, but also as a scene-shaping piece for travel danger, dungeon pressure, wilderness discovery, or a stronger narrative threat.
Rust Monster is listed in Monster Almanac as a CR 1/2 monstrosity.
Rust Monster is listed as a monstrosity.
Yes. This page includes a official srd 5.2.1 stat block and a downloadable PDF sheet.
Yes. This page links to Rust Monster token, portrait, chatbot, terrain, fear hook, and monster hunt tools for fast D&D prep.
After choosing Rust Monster, the next step is usually to connect the monster with a place, an encounter shape, a supporting cast, or a character who fears it. Use the tools below to keep building without leaving the Monster Almanac workflow.