Rust Monster

Rust Monster. Medium monstrosity, unaligned.

Traits: Iron Scent

Medium monstrosity · unaligned

AC 14 · HP 33 · Speed 40 ft., swim 20 ft., climb 20 ft. · Initiative +1

Senses darkvision 60 ft., passive Perception 11 · Challenge 1/2 (PB +2)

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

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.

Bite. Melee Attack Roll: +3, reach 5 ft. 5 (1d8 + 1) Piercing damage.

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.

Multiattack. The rust monster makes one Bite attack and uses Antennae twice.