Illhveli, Nauthveli

Illhveli, Nauthveli is a gargantuan monstrosity (Challenge Rating 16).

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AC: 18

HP: 280

Speed: swim 60 ft., walk 10 ft.

STR: 30

DEX: 10

CON: 25

INT: 6

WIS: 15

CHA: 12

Vast and terrible to behold, a nauthveli is an enormous whale with a dappled black-and-white hide and a head resembling an enormous fanged cow, its eyes blazing with malevolence._
Evil of the Seas. One of the largest of the illhveli, the nauthveli is a creature of pure hatred and malice. Known for their bellowing bull-like cries, the nauthveli haunt deep, cold waters, contesting the depths with other monsters such as Open Game License

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Further reading

Jetpack7 Game Master Series
The Game Master's Book of Random Encounters
Jeff Ashworth · 2020
The Game Master's Book of Traps, Puzzles and Dungeons
Jeff Ashworth · 2022
The Game Master's Book of Legendary Dragons
Aaron Hübrich · 2022
Last updated 7/27/2026·Tags: monster, monstrosity, gargantuan