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Rust Monster

D&D 5e · 2014·Medium Monstrosity·Unaligned

Armor class
14natural armor
Hit points
275d8+5
Challenge
1/2100 XP
Proficiency
+2

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
—

Traits

Iron Scent

The rust monster can pinpoint, by scent, the location of ferrous metal within 30 feet of it.

Rust Metal

Any nonmagical weapon made of metal that hits the rust monster corrodes. After dealing damage, the weapon takes a permanent and cumulative -1 penalty to damage rolls. If its penalty drops to -5, the weapon is destroyed. Nonmagical ammunition made of metal that hits the rust monster is destroyed after dealing damage.

Actions

Bite

Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 5 (1d8 + 1) piercing damage.

Antennae

The rust monster corrodes a nonmagical ferrous metal object it can see within 5 feet of it. If the object isn't being worn or carried, the touch destroys a 1-foot cube of it. If the object is being worn or carried by a creature, the creature can make a DC 11 Dexterity saving throw to avoid the rust monster's touch. If the object touched is either metal armor or a metal shield being worn or carried, its takes a permanent and cumulative -1 penalty to the AC it offers. Armor reduced to an AC of 10 or a shield that drops to a +0 bonus is destroyed. If the object touched is a held metal weapon, it rusts as described in the Rust Metal trait.

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Rules source: System Reference Document 5.1 ↗

This work includes material taken from the System Reference Document 5.1 ("SRD 5.1") by Wizards of the Coast LLC and available at https://dnd.wizards.com/resources/systems-reference-document. The SRD 5.1 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