5E D&D Lovecraft-ian Horror: Moon Beast

This is the latest entry in a series of creatures I converted for Fifth Edition Dungeons & Dragons from Lovecraftian fiction. You can download all 100 monsters here 

Moon-beasts are man-sized toad-like horrors with tentacles for faces. They are the masters of the lengfolk and use their slave galleons to visit the realms of the Dreamlands to fill their quota of slaves. 

Moon-beasts are rubbery beasts capable of expanding or contracting at will, and are fearsome fighters with their tentacles and javelins. They are particularly fond of torture and will torment lesser beings for pleasure. 


Medium aberration   (astral, dreamlander), lawful evil

Armor Class   17 (natural armor)
Hit Points 16 (3d8+9)
Speed 30 ft.

STR | DEX | CON | INT | WIS | CHA     

17 (+3) | 14 (+2) | 16 (+3) | 15 (+2) | 13 (+1) | 16 (+3)

Skills Intimidate   +5

Damage   Immunities bludgeoning from non-magical attacks

Damage   Resistances piercing and slashing

Condition   Immunities blinded, deafened
Senses passive Perception 11
Languages Dreamspeak, moon-beast
Challenge 7 (2,900 XP)

Standing Leap. The   Moon-beast’s long jump is up to 20 feet and its high jump is up to 10 feet,   with or without a running start.

Torture. Up to four moon-beasts can psychically   torture one incapacitated creature. This torture has no effect on a creature   that is immune to the frightened condition. If the creature is susceptible   and remains incapacitated for 1 hour, the creature must make a Wisdom saving   throw. taking 10 (3d6) psychic damage on a failed save, or half as much   damage on a successful one. The save DC is 10 + the number of moon-beasts   participating in the torture, considering only those that remain within sight   of the victim for the entire hour and aren't incapacitated during it. The   process can be repeated.


  • Enlarge (Recharges after a Short or Long   Rest). For 1 minute, the moon-beast magically increases in size,   along with anything it is wearing or carrying. While enlarged, the moon-beast   is Large, doubles its damage dice on Strength-based weapon attacks (included   in the attacks), and makes Strength checks and Strength saving throws with   advantage. If the moon-beast lacks the room to become Large, it attains the   maximum size possible in the space available.
  • Tentacles. Melee Weapon Attack: +5   to hit, reach 10 ft., one creature. Hit: 12 (2d8 + 3) psychic damage or 21   (4d8+3) while enlarged. If the target is Medium (Large while enlarged) or smaller,   it is grappled (escape DC 13) and must succeed on a DC 13 Intelligence saving   throw or be stunned until this grapple ends.
  • Javelin. Melee or Ranged Weapon   Attack: +5 to hit, reach 5 ft. or range 30/120 ft., one target. Hit: 6 (1d6 +   3) piercing damage, or 10 (2d6 + 3) piercing damage while enlarged.

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