Rust Monster
CR 1/2 monstrosity that corrodes metal equipment on contact: Antennae action imposes DEX save DC 11 penalties to worn/carried nonmagical metal objects (armor -1 AC per hit until AC...
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
| STR | DEX | CON | INT | WIS | CHA | |
|---|---|---|---|---|---|---|
| Score | 13 | 12 | 13 | 2 | 13 | 6 |
| Mod | +1 | +1 | +1 | -4 | +1 | -2 |
| Save | +1 | +1 | +1 | -4 | +1 | -2 |
Senses darkvision 60 ft., passive Perception 11 · Challenge 1/2 (PB +2)
Traits
Iron Scent. The rust monster can pinpoint the location of ferrous metal within 30 feet of itself.
Actions
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.