{
  "actions": [
    {
      "actions": [],
      "attack_bonus": 3,
      "damage": [
        {
          "damage_dice": "1d8+1",
          "damage_type": {
            "index": "piercing",
            "name": "Piercing",
            "url": "/api/2014/damage-types/piercing"
          }
        }
      ],
      "desc": "Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 5 (1d8 + 1) piercing damage.",
      "name": "Bite"
    },
    {
      "actions": [],
      "damage": [],
      "desc": "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.\nIf 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 +0 bonus is destroyed. If the object touched is a held metal weapon, it rusts as described in the Rust Metal trait.",
      "name": "Antennae"
    }
  ],
  "alignment": "unaligned",
  "armor_class": [
    {
      "type": "natural",
      "value": 14
    }
  ],
  "challenge_rating": 0.5,
  "charisma": 6,
  "condition_immunities": [],
  "constitution": 13,
  "damage_immunities": [],
  "damage_resistances": [],
  "damage_vulnerabilities": [],
  "dexterity": 12,
  "forms": [],
  "hit_dice": "5d8",
  "hit_points": 27,
  "hit_points_roll": "5d8+5",
  "image": "/api/images/monsters/rust-monster.png",
  "index": "rust-monster",
  "intelligence": 2,
  "languages": "",
  "legendary_actions": [],
  "name": "Rust Monster",
  "proficiencies": [],
  "proficiency_bonus": 2,
  "reactions": [],
  "senses": {
    "darkvision": "60 ft.",
    "passive_perception": 11
  },
  "size": "Medium",
  "special_abilities": [
    {
      "damage": [],
      "desc": "The rust monster can pinpoint, by scent, the location of ferrous metal within 30 feet of it.",
      "name": "Iron Scent"
    },
    {
      "damage": [],
      "desc": "Any nonmagical weapon made of metal that hits the rust monster corrodes. After dealing damage, the weapon takes a permanent and cumulative -1 penalty to damage rolls. If its penalty drops to -5, the weapon is destroyed. Nonmagical ammunition made of metal that hits the rust monster is destroyed after dealing damage.",
      "name": "Rust Metal"
    }
  ],
  "speed": {
    "walk": "40 ft."
  },
  "strength": 13,
  "type": "monstrosity",
  "updated_at": "2026-04-01T20:35:38.254Z",
  "url": "/api/2014/monsters/rust-monster",
  "wisdom": 13,
  "xp": 100
}