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Rust Monster

D&D 5e · 2024·Medium Monstrosity·Unaligned

Armor class
14
Hit points
336d8 + 6
Challenge
1/2100 XP
Proficiency
+2Initiative +1

Speed 40 ft.

Ability scores, modifiers and saving throws
MeasureStrDexConIntWisCha
Score1312132136
Mod+1+1+1-4+1-2
Save+1+1+1-4+1-2
Senses
Darkvision 60 ft.; Passive Perception 11
Languages
None

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.

Find similar monsters

Rules source: System Reference Document 5.2.1 ↗

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. Stat blocks were structured and tagged by JustRoll from the Open5e transcription, then checked against the official document; values that differed were corrected from it.

Creative Commons Attribution 4.0