Taniwha are powerful Māori water spirits and shapeshifters, guardians of deep waters who can appear as giant lizards, eels, sharks, or dragon-like forms, dnd 5e demon for fernflower press fern flower press fernflowerpress.com, dnd, monster, creature, beast, 5e, bestiary, by cr, homebrew, tome, guide, lore, stat blocks, tools, modules, legend, folklore

Taniwha

Water spirits that can take many shapes—lizards, eels, or sharks—depending on the locale and its people.
Type: monstrosity (shapechanger) Habitat: oceans, rivers, lakes, deep pools, caves, and fast currents Region: Māori (New Zealand)

Lore

Taniwha (Spirit) - Māori - Water spirits that can take many shapes—lizards, eels, or sharks—depending on the locale and its people.

Taniwha are mighty supernatural beings whose name goes back to the Oceanic word tanifa, “a kind of shark.” Taniwha are shape-shifters, able to take on many guises, and the surest way to spot one is by its sheer, unnatural size—always far larger than any normal sea creature.

The core trait of a taniwha is its gift for transformation. Most accounts describe a reptilian look: dragon- or serpent-like bodies, blazing eyes, a tail, a ridge of spines—sometimes resembling giant tuatara or geckos. At sea they may appear as colossal whales or sharks; the popular term mangō-taniwha refers to something much like an enormous great white. Camouflage forms exist, too, such as a bewitched log drifting upstream against the current.

Taniwha dwell in oceans, rivers, and lakes—especially deep pools, shadowy caves, and stretches of fast current. Their lair is called a rua taniwha. In several legends these spirits even reshape the land: Ngake and Whataitai are said to have gouged the channel that became Wellington Harbor, while the body of a lizard-like taniwha hardened into a riverbed. Typically they live alone and guard a specific territory; to “their” tribe they act as guardians, warning of storms or fending off foes, but to outsiders they become deadly, man-eating threats.

Stat block

Taniwha Rua-Guardian

Huge monstrosity (shapechanger), chaotic neutral

Armor Class 17 (natural armor)
Initiative +2
Hit Points 195 (17d12 + 85)
Speed 30 ft., swim 70 ft., climb 30 ft.

MOD
SAVE
str
24
+7
+7
int
12
+1
+1
MOD
SAVE
dex
14
+2
+7
wis
15
+2
+7
MOD
SAVE
con
20
+5
+10
cha
16
+3
+8

Saving Throws Dex +7, Con +10, Wis +7, Cha +8
Skills Insight +7, Perception +12, Stealth +7 (water only)
Damage Resistances cold; bludgeoning, piercing, and slashing from non-magical attacks
Damage Vulnerabilities thunder (from consecrated mere or comparable magic)
Condition Immunities frightened, prone (while swimming)
Senses darkvision 120 ft., tremorsense 60 ft. (water only), passive Perception 22
Languages understands Common and Māori; telepathy 120 ft. with willing creatures
CR 10 (5,900 XP) Proficiency Bonus +4
🌊🦎🦈🐉
Find this creature’s full lore and stat block in the book