{"index":"rust-monster","name":"Rust Monster","size":"Medium","type":"monstrosity","alignment":"unaligned","armor_class":[{"type":"natural","value":14}],"hit_points":27,"hit_dice":"5d8","hit_points_roll":"5d8+5","speed":{"walk":"40 ft."},"strength":13,"dexterity":12,"constitution":13,"intelligence":2,"wisdom":13,"charisma":6,"proficiencies":[],"damage_vulnerabilities":[],"damage_resistances":[],"damage_immunities":[],"condition_immunities":[],"senses":{"darkvision":"60 ft.","passive_perception":11},"languages":"","challenge_rating":0.5,"proficiency_bonus":2,"xp":100,"special_abilities":[{"name":"Iron Scent","desc":"The rust monster can pinpoint, by scent, the location of ferrous metal within 30 feet of it.","damage":[]},{"name":"Rust Metal","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.","damage":[]}],"actions":[{"name":"Bite","desc":"Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 5 (1d8 + 1) piercing damage.","attack_bonus":3,"damage":[{"damage_type":{"index":"piercing","name":"Piercing","url":"/api/2014/damage-types/piercing"},"damage_dice":"1d8+1"}],"actions":[]},{"damage":[],"name":"Antennae","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.","actions":[]}],"image":"/api/images/monsters/rust-monster.png","url":"/api/2014/monsters/rust-monster","updated_at":"2026-04-01T20:35:38.254Z","forms":[],"legendary_actions":[],"reactions":[]}