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Thornback

Huge plant, unaligned

AC
16
HP
133
Speed
30
CR
7

Huge thornback behemoth, spined tank.


Armor Class 16 (natural armor)

Hit Points 133 (14d12 + 42)

Speed 30 ft.


STR
20 (+5)
DEX
12 (+1)
CON
16 (+3)
INT
3 (-4)
WIS
12 (+1)
CHA
6 (-2)

Senses passive Perception 11

Languages —

Challenge 7


Traits

Thorn Spray. When the thornback takes melee damage, each creature within 5 feet takes 3 (1d6) Piercing damage.

Actions

Slam. Melee Attack Roll: +8, reach 5 ft. Hit: 16 (2d10 + 5) Bludgeoning damage, and the target is grappled (escape DC 16).

Spine Volley (Recharge 5–6). Each creature in a 30-foot cone must make a DC 14 Dexterity saving throw, taking 18 (4d8) Piercing damage on a failed save, or half as much on a successful one.

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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