Rust Monster

Stat block

Cha

6

Con

13

Dex

12

Int

2

Str

13

Wis

13

Speed

Walk: 40

Senses

darkvision 60 ft., passive Perception 11

Actions

• Multiattack. The rust monster makes one Bite attack and uses Antennae twice.
• Bite. Melee Attack Roll: +3, reach 5 ft. 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 [Area of Effect]|XPHB|Cube of the object.

Hit dice

6d8 + 6

Reactions

• Reflexive Antennae. _Trigger:_ An attack roll hits the rust monster. _Response:_ The rust monster uses **Antennae**.

Armor detail

natural armor

Special abilities

• Iron Scent. The rust monster can pinpoint the location of ferrous metal within 30 feet of itself.