Medium humanoid (dwarf, shapechanger), neutral evil

Armor Class 16 (hide armor)
Hit Points 28 (3d8 + 15)
Speed 25 ft. (40 ft. in cat form)

21 (+5) 21 (+5) 20 (+5) 13 (+1) 11 (+0) 12 (+1)

Skills Acrobatics +7, Athletics +7, Brewer’s Tools +7, History +3, History (Stoneworks) +5, Perception +2, Stealth +7, Survival +2
Damage Immunities bludgeoning, piercing, and slashing from nonmagical attacks not made with silvered weapons
Damage Resistances poison
Senses darkvision 60 ft., passive Perception 12
Languages Common, Dwarvish
Proficiency Bonus +2
Challenge 3 (700 XP)


  • Dwarven Resilience. The cat-sith has advantage on saving throws against poison.
  • Keen Hearing and Smell. The cat-sith has advantage on Wisdom (Perception) checks that rely on hearing or smell. Running Leap (Cat-Sith or Hybrid Form Only). With a 10-foot running start, the cat-sith can long jump up to 25 feet.


  • Multiattack (Humanoid or Hybrid Form Only). In humanoid form, the cat-sith makes two Shortsword attacks. In hybrid form, it can attack like a humanoid or make two Claw attacks.
  • Bite (Cat-Sith or Hybrid Form Only). Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 8 (1d6 + 5) piercing damage.
  • Claw (Cat-Sith or Hybrid Form Only). Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 7 (1d4 + 5) slashing damage.
  • Shortsword (Humanoid or Hybrid Form Only). Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 8 (1d6 + 5) piercing damage.
  • Change Shape. The cat-sith can use its action to polymorph into a cat-humanoid hybrid or into a cat-sith, or back into its true form, which is humanoid. Its statistics, other than its size, are the same in each form. Any equipment it is wearing or carrying isn’t transformed. It reverts to its true form if it dies.


  • Pounce (Cat-Sith or Hybrid Form Only). If the cat-sith moves at least 15 feet straight toward a creature and then hits it with a claw attack on the same turn, that target must succeed on a DC 15 Strength saving throw or be knocked prone. If the target is prone, the cat-sith can make one bite attack against it as a bonus action.


The cat-sith appears as a man-sized black cat with a white tuft of hair on its chest. In its cat form, it is short and squat, with a sleek and muscular build. Its glowing yellow eyes and wicked claws add to its menacing appearance. When it assumes its hybrid form, it retains its feline features while taking on a more humanoid shape. In this form, its glaring yellow eyes pierce through the darkness, and its claws are even more formidable.

Cat-siths (cat-SHEE) can be found primarily in the highlands, where they roam the rugged landscapes, dense forests, and mist-covered moors. They are adept at blending into their surroundings, using their cat form to move silently and undetected. They are particularly drawn to areas associated with mystical energy and ancient lore, often lurking near ancient stone circles, burial sites, and sacred groves.

Cat-siths are shapeshifters by nature, adopting either their hybrid or cat form to conceal their true identity as dwarves. In their dwarf forms, their appearances can vary, but all of them have a distinctive white streak in their beard that can be discerned with a keen eye. This unique characteristic allows the discerning observer to uncover their secret.

Their ability to transform into cats gives them an advantage in hunting and surveillance. In cat form, they can silently stalk their prey, using their keen hearing and smell to track down targets. They possess heightened senses, enabling them to detect subtle changes in their environment and perceive hidden threats.

Cat-siths are cunning hunters, utilizing their agility, speed, and natural weapons to take down their prey. In their hybrid form, they prefer to ambush their targets, leaping from the shadows with exceptional acrobatic prowess. Their running leap ability allows them to cover significant distances in a single bound, pouncing upon unsuspecting victims.

They employ a combination of slashing claws and a piercing bite to bring down their opponents swiftly. In humanoid form, they wield shortswords. Their mastery of stealth and their shapeshifting abilities make them formidable adversaries.

Cat-siths are known to be opportunistic predators, preying on those who dare to cross their path or pose a threat to their hidden agendas. They strike with precision and ferocity, using their innate abilities to incapacitate and eliminate their foes.

Section 15: Copyright Notice

5E RPG: Celtic Bestiary. Copyright 2023, Mal and Tal Enterprises, LLC; Author Michael Tresca.

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