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Tremor-Beast

Large monstrosity, unaligned

AC
17
HP
114
Speed
30
CR
5

A hulking, eyeless digger with a plated back and forelimbs like shovels. Tremor-beasts swim through packed earth the way fish swim through water, and they hunt by feel. Miners know one is close when the lamp-oil starts to shiver in its dish. By then the floor is already moving.


Armor Class 17 (natural armor)

Hit Points 114 (12d10 + 48)

Speed 30 ft., burrow 30 ft.


STR
20 (+5)
DEX
8 (-1)
CON
18 (+4)
INT
4 (-3)
WIS
12 (+1)
CHA
6 (-2)

Condition Immunities blinded

Senses blindsight 10 ft., tremorsense 60 ft. (blind beyond this radius), passive Perception 11

Challenge 5


Traits

Loosened Ground. The ground within 20 feet of the tremor-beast is difficult terrain for every creature except the tremor-beast.

Actions

Multiattack. The tremor-beast makes two Digging Claw attacks.

Digging Claw. Melee Attack Roll: +8, reach 5 ft. Hit: 14 (2d8 + 5) Slashing damage.

Upheaval (Recharge 5-6). The tremor-beast heaves up the ground around it. Each creature standing on the ground within 20 feet of it must make a DC 16 Dexterity saving throw. On a failed save, a creature takes 22 (4d10) Bludgeoning damage and is knocked prone. On a successful save, it takes half as much damage and isn't knocked prone.

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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