5th edition Monster conversions: Dire Vapor Rat

Dire Vapor Rat

Small beast, unaligned

Armor Class 13

Hit Points 24 (7d6)

Speed 40 ft., swim 20 ft. Climb 20 ft

Abilities Str 8 (-1) Dex 16 (+3) Con 12 Int 6 (−2) Wis 10 (+0) Cha 4 (−3)

Weaknesses Cold

Resistances Fire

Senses darkvision 60 ft., passive Perception 12

Skills Perception(wis) + 2, Stealth +5

Languages Common (Can Not Speak)

Challenge 1 (200 XP)

Special Abilities

Keen Smell  A Vapor Rat gains advantage on Wisdom (Perception) checks that rely on smell.

Camouflage A Vapor Rat gains advantage on Dexterity (Stealth) checks when in areas of smoke, mist, fog, or other similar concealment.

Regeneration While in areas of vapor or mist, a Vapor Rat regenerates 2 hp per round.


Bite. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 6 (2d6-1)  If the target is a creature, it must succeed on a DC 11 saving throw against disease or become poisoned until the disease is cured. Every 24 hours that elapse, the target must repeat the saving throw, reducing its hit point maximum by 3 (1d6) on a failure. The disease is cured on a success. If the target’s HP maximum hits zero, it dies. This reduction to the targets hp maximum lasts until the disease is cured.

Vapor Form As an action, a vapor rat turns to vapor. It gains Resistance to Slashing, Piercing, and Bludgeoning damage from non-magical weapons. All creatures gain Resistance to damage from its attacks.

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