D&D 5E SRD Reference
Browse the collection of basic D&D 5E content from the Systems Reference Document (SRD), available for use in your campaigns. All artwork is AI-generated art by Friends & Fables.
This work includes material taken from the System Reference Document 5.1 ("SRD 5.1") by Wizards of the Coast LLC. The SRD 5.1 is licensed under the Creative Commons Attribution 4.0 International License.
| Size | Medium |
| Type | Monstrosity |
| CR | 0.5 |
| XP | 100 |
| Languages | None |
| Armor Class | 14 |
| HP Range | 10 - 45 (Avg: 28) |
| Damage Vulnerabilities | None |
| Damage Resistances | None |
| Damage Immunities | None |
| Condition Immunities | None |
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 bonus is destroyed. If the object touched is a held metal weapon, it rusts as described in the Rust Metal trait.
Bite
Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 5 (1d8 + 1) piercing damage.