Screamscale Centipede

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Large Monstrosity, Neutral Evil

Armor Class 15 (natural armor)

Hit Points 135 (18d10+36)

Speed 30 ft. burrow 20 ft.

STR 18 (+4)

DEX 14 (+2)

CON 16 (+3)

INT 3 (-4)

WIS 12 (+1)

CHA 6 (-2)

Saving Throws Con +6, Wis +4

Skills Stealth +6, Perception +4

Senses darkvision 60 ft., passive Perception 14

Languages Undercommon

Challenge 6 (2,300 XP) Proficiency Bonus +3

Keen Senses. The creature has advantage on Wisdom (Perception) checks that rely on sight, hearing, or smell.

Screaming Fire Trigger. If the centipede is dealt fire damage, it emits a bone-chilling scream. Each creature within 60 feet that can hear the scream must succeed on a DC 12 Wisdom saving throw or be frightened for 1 round. On a failed save, the creature also takes 2d6 thunder damage.

Actions

Multiattack. The centipede makes three attacks: two bites and one tail sting.

Bite. Melee weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 14 (2d8+5) piercing damage.

Claw. Melee weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 11 (2d6+4) slashing damage.

Tail Sting. Melee weapon Attack: +7 to hit, reach 10 ft., one target. Hit: 13 (2d6+6) piercing damage. If the target is a Medium or smaller creature, it must succeed on a DC 14 Strength saving throw or be knocked prone.

Environment Forest

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Lore & Description

Appearance

A centipede the size of a horse, its body a segmented, chitinous coil mottled in browns and greens. Each segment bristles with ash-gray setae, and its countless legs move in a hypnotic, synchronized rhythm. Its head bears a fringe of needle-like mandibles and eyes that glimmer like wet stone. When burned, the creature thrums with a fevered, relentless hum and erupts into a piercing scream that shakes the air and rattles the teeth of those nearby.

Behavior & Origins

These vast forest-drears haunters emerge from root networks and old burrows when the air smells of smoke. They hunt by ambush, using their brutal bites and the fearsome wail that follows fire to scatter prey and claim victims. Fire is a dangerous lure for them: it draws the creature forth, but each spark also triggers a counterpoint scream—a defense that can incapacitate foes long enough for the centipede to slip away into the earth.

Generation Info

Original prompt:
"A centipede the length of a horse that screams when burned."

Created: Feb 2, 2026
Modified: May 23, 2026