Rust Monster

Size: Medium Type: Monstrosity Alignment: unaligned Armor Class: 14 Hit Points: 27 Hit Dice: 5d8+5 Speed: "walk": 40 Challenge Rating: 1/2 Actions: ["attack_bonus": 3, "damage_bonus": 1, "damage_dice": "1d8", "desc": "Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 5 (1d8 + 1) piercing damage.", "name": "Bite", "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"] Special Abilities: ["desc": "The rust monster can pinpoint, by scent, the location of ferrous metal within 30 feet of it.", "name": "Iron Scent", "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. Non magical ammunition made of metal that hits the rust monster is destroyed after dealing damage.", "name": "Rust Metal"]