AC
18
Natural Armor
Initiative
+1 (11)
HP
190
(20d10 + 60)
Speed
40 ft., Burrow 20 ft.
| Mod | Save | ||
|---|---|---|---|
| STR | 18 | +4 | +10 |
| DEX | 12 | +1 | +1 |
| CON | 16 | +3 | +9 |
| Mod | Save | ||
|---|---|---|---|
| INT | 3 | −4 | −4 |
| WIS | 13 | +1 | +1 |
| CHA | 8 | −1 | −1 |
Skills
Intimidation +5, Perception +7
Resistances
Bludgeoning, Piercing, and Slashing from Nonmagical Attacks
Immunities
Acid, Fire; Charmed
Senses
Blindsight 30ft, Darkvision 60 ft., Tremorsense 30ft; Passive Perception 17
Languages
None
CR
17 (XP 18,000; PB +6)
Traits
Iron Scent. The rust monster can pinpoint the location of ferrous metal within 60 feet of itself.
Actions
Multiattack. The rust monster makes two Bite attack and uses Antennae three times..
Antennae. The rust monster corrodes a nonmagical or magical metal object it can see within 5 feet of it. Then if it is not being worn or carried it eats a two foot block out of it. If it is a object being Held or carried or it is a construct or has metal parts is made mainly out of metal the creature holding it or the creature may make a DC18 dexterity saving throw or be hit by the attack.
If the object touched is either metal armor or a metal shield being worn or carried, it 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 takes a permanent and cumulative -1 penalty to damage rolls. If its penalty drops to -5, the weapon is destroyed. If it is a construct or war forged there hit point maximum is reduced by 30(8D6+2) or 60(16D6+4) if they are weak to acid or are large or smaller. There constitution is also decreased by eight (1D10+3) until the greater restoration spell or similar magic is cast on the target.
Bite. Melee Weapon Attack: +10 to hit, reach 5 ft., one target. Hit: 23 (3d12 + 4) piercing damage plus 10(3D6) acid damage.
Destroy Metal. The rust monster touches a nonmagical metal object within 5 feet of itself that isn’t being worn or carried. The touch destroys a 2-foot Cube of the object.
Reactions
Reflexive Antennae. Trigger: An attack roll hits the rust monster. Response: The rust monster uses Antennae.
Legendary Actions
Legendary Actions
The rust monster can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature's turn. The monster regains spent legendary actions at the start of its turn.
Bite: The rust monster makes one bite attack.
Antenna : The rust monster makes a antenna attack and moves its walking speed without provoking opportunity attacks. This action can not be taken until the start of the rust monsters next turn.
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