Bug-Bear

large monstrosity, neutral

Armor Class: 17 (Natural Armor)

Hit Points: 110 ()

Speed: 40 ft, climb 30 ft.

		Mod	Save
STR	21	+5	+5
DEX	14	+2	+2
CON	17	+3	+6

		Mod	Save
INT	4	-3	-3
WIS	12	+1	+4
CHA	6	-2	-2

Skills: Perception +4, Stealth +5

Damage Resistances: bludgeoning, piercing, slashing

Senses: darkvision 60 ft., tremorsense 30 ft., passive Perception 14

Languages: —

CR: 6 (2,300 XP); PB +3

Traits

Spider Climb: The bug-bear can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.

Actions

Multi Attack: The bug-bear makes two attacks: one with its Claws and one with its Mandibles.

Claws: Melee Attack Roll: +8, reach 5ft. Hit: 16 () Slashing damage

Mandibles: Melee Attack Roll: +8, reach 5ft. Hit: 14 (), and the target must succeed on a DC 16 Constitution saving throw or take 9 () poison damage and be poisoned until the end of its next turn.

Sonic Buzz (Recharge 5-6): The bug-bear vibrates its carapace violently, emitting a shrieking buzz. Each creature within 30 feet that can hear it must succeed on a DC 16 Constitution saving throw or be deafened for 1 minute and stunned until the end of its next turn. A creature that succeeds is immune to this buzz for 24 hours.

Bonus Actions

Aggressive: As a bonus action, the bug-bear can move up to its speed toward a hostile creature that it can see.

Bear Rage (Recharge 5–6): As a bonus action, the bug-bear enters a frenzy for 1 minute. During this time, it has advantage on melee weapon attack rolls and gains 10 temporary hit points at the start of each of its turns. The frenzy ends early if it is incapacitated.

Notes

Chitin-armored, muscled, and filled with instinctive rage, the adult bug-bear is a living weapon bred to protect the hive and destroy intruders. Their compound eyes reflect no emotion—only orders.
Full-grown bug-bears are rare in the wild; most remain in their hives, guarding egg chambers or patrolling tunnels. A lone adult on the surface is often a harbinger of deeper infestation. Despite their size and strength, they rarely act independently—only when the matriarch is destroyed or the hive collapses do they break from the swarm and roam the surface in a blind, destructive fugue.
Some adult bug-bears are adapted into special roles within the hive, growing additional armor, spore sacs, or chemical defenses depending on environmental needs.

The Bug-Bear Brood

A grotesque fusion of insect and bear, bug-bears are hulking monstrosities born from ancient magical tampering in deep subterranean hives. Though they resemble no known natural species, their social structure and lifecycle parallel those of eusocial insects, with a powerful queen-like matriarch at the core of each colony.
Bug-bear hives operate with eerie precision. Each creature is bred for a specific function—larvae serve as helpless feeders and future soldiers, juveniles as scouts and expendable shock troops, and adults as frontline warriors and guardians. Despite their monstrous appearance, bug-bears exhibit surprising coordination and resourcefulness, often ambushing prey or enemies with hive-level tactics.
The colonies themselves are sprawling labyrinths of hardened resin and organic material, exuding warmth, pheromones, and a low ambient hum. Matriarchs anchor the colony from its deepest point, continuously birthing new larvae to feed and protect the hive. Other members of the species function as extensions of her will, guided by scent, vibration, and instinct.
Wherever bug-bears spread, local ecosystems are swiftly disrupted—predators avoid the area, carrion beetles and scavengers follow the swarm, and hunters speak in hushed tones about the tunnels breathing just beneath the forest floor.
Bug-bears are blind to morality, acting on biological instinct and pheromonal command. Their presence in a region often indicates a nearby hive, hidden in caverns, ruins, or even buried forests, where chitinous tunnels wind through the earth like a festering wound.

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