Boomer

Boomer is a medium plant (Challenge Rating 1/2).

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AC: 7

HP: 22

Speed: walk 0 ft.

STR: 1

DEX: 1

CON: 12

INT: 1

WIS: 3

CHA: 1

An ear-piercing shriek echoes in the cavern. The sound comes from a human-sized mushroom whose stalk steadily swells with air as it shrieks._
Thunderous Shriek. Boomers are a subspecies of 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, plant, medium