Rust Monster

Medium Monstrosity , Unaligned
• Armor Class: 14
• Hit Points: 27 (5d8+5)
• Speed: 40 ft.

STR DEX CON INT WIS CHA
13 (+1) 12 (+1) 13 (+1) 2 (-4) 13 (+1) 6 (-2)

• Senses: darkvision 60 ft.
• Challenge: 1/2 (100 XP)
• Environments: Dungeon, Underground

• Iron Scent: The rust monster can pinpoint, by scent, the location of ferrous metal within 30 feet of it.

• Rust Metal: 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.

Actions


• Bite: Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 5 (1d8 + 1) piercing damage.

• 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 +0 bonus is destroyed. If the object touched is a held metal weapon, it rusts as described in the Rust Metal trait.