Rust Monster
Monstrosity · Medium
An insect-like beast with feathery antennae that turns metal to rust at a touch and eats the flakes. It is barely dangerous to flesh, but knights fear it more than dragons.
- Danger
- A threat to the unwary
- How it is met
- In pairs, day and night
- Challenge
- 1/2
- SRD 5.2.1 stat blocks
- Rust Monster
Where it is met
Also: Dungeon, Mine Works
Stat blocks (D&D 5e)
Rust Monster
Medium Monstrosity, Unaligned
AC 14 · Initiative +1 (11)
HP 33 (6d8 + 6)
Speed 40 ft.
| Str | Dex | Con | Int | Wis | Cha |
|---|---|---|---|---|---|
| 13 (+1), save +1 | 12 (+1), save +1 | 13 (+1), save +1 | 2 (−4), save −4 | 13 (+1), save +1 | 6 (−2), save −2 |
Senses Darkvision 60 ft.; Passive Perception 11
Languages None
CR 1/2 (XP 100; PB +2)
Traits
Iron Scent. The rust monster can pinpoint the location of ferrous metal within 30 feet of itself.
Actions
Multiattack. The rust monster makes one Bite attack and uses Antennae twice.
Bite. Melee Attack Roll: +3, reach 5 ft. Hit: 5 (1d8 + 1) Piercing damage.
Antennae. The rust monster targets one nonmagical metal object—armor or a weapon—worn or carried by a creature within 5 feet of itself. Dexterity Saving Throw: DC 11, the creature with the object. Failure: The object takes a −1 penalty to the AC it offers (armor) or to its attack rolls (weapon). Armor is destroyed if the penalty reduces its AC to 10, and a weapon is destroyed if its penalty reaches −5. The penalty can be removed by casting the Mending spell on the armor or weapon.
Destroy Metal. The rust monster touches a nonmagical metal object within 5 feet of itself that isn’t being worn or carried. The touch destroys a 1-foot Cube of the object.
Reactions
Reflexive Antennae. Trigger: An attack roll hits the rust monster. Response: The rust monster uses Antennae.
Sahuagin
This work includes material from the System Reference Document 5.2.1 ("SRD 5.2.1") by Wizards of the Coast LLC, available at https://www.dndbeyond.com/srd. The SRD 5.2.1 is licensed under the Creative Commons Attribution 4.0 International License, available at https://creativecommons.org/licenses/by/4.0/legalcode.
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