
They are prone to be encountered individually or in a small group. It is worth nothing that Rust Monsters generally favor small numbers. While this won’t damage the character, it can quickly weaken and destroy their equipment. With their antennae rubbing against the metal, they begin to feast. They hiss and screech as they skitter towards whatever character has the most metal on them. More often than not, this will be the party’s Paladin, Cleric or Fighter.įor those who do have metallic weapons or armor, the Rust Monster does get aggressive. In an encounter, they will focus on whatever the single greatest source of metal is. Those who do not have metal on them are largely ignored by Rust Monsters. It’s keeping their antennae away from your armor and weapons in the meantime that makes them so terrifying and infamous. However, as the party are fighting them off, the Rust Monster is more likely to run away with the Dash action than it is to stand and fight. The only metals immune to the Rust Monster’s corroding antennae are those that are magical.Īs an absolute last resort, the Rust Monster does have a bite attack. They love ferrous metals like iron, steel, adamantine, and mithral. When the Rust Monster smells metal, it rushes towards it. But this does present an interesting concept for a villain in a subterranean environment who keeps a few of these on hand as pets. No doubt, most party members would have concerns about keeping something nearby that wants to eat their 1500gp Plate Armor. I’m not sure how well having a pet Rust Monster would work in a party, but it would certainly be interesting.
Rust monster manual#
The Monster Manual even states that Rust Monsters that are treated well and regularly fed may even become companions or pets. Rust Monsters that nest near these more fearsome creatures may often get a steady supply of food as a result of this symbiotic relationship.īecause most creatures find the Rust Monster to be harmless and unappetizing, these relationships aren’t uncommon. Those who fall victim to the other horrors of these subterranean passages, however, often leave tasty bits of armor and weaponry behind. Humanoids like Dwarves or Drow that commonly live in these areas know to be extra careful when bringing metal near a location that is known to have Rust Monsters. They will not be making attempts to ambush the party, but they will quickly begin to rush an adventurer that they detect metal on.Īs scavengers, Rust Monsters favor dark, subterranean environments where they can eat the armor and weapons of those passing through.

Rust Monsters are driven exclusively by instinct and their search for food.

In addition to helping them navigate, the Rust Monster uses its antennae to corrode any metal that they touch.

With a thick outer shell and a long tail ending in bony protrusions, these critters are hardier than you might initially think.īut it’s their two long, feathery antennae that cause the most fear. As a medium-sized monstrosity, these creatures are about five feet long and three feet tall. The Rust Monster resembles a type of monstrous, brown cockroach.
