Alpha Bug - The Chitinous Ravager

Lore: The Chitinous Ravager

Origin: Deep beneath the surface, in the endless tunnels of the Underdark, lurks a predator older than most civilizations. Known as the Chitinous Ravager, this monstrosity is believed to be a failed creation of an ancient aberrant god, left to roam and adapt. Over millennia, it evolved into a perfect ambush predator, feeding on anything that moves—be it drow, duergar, or even other aberrations.

Appearance: Its segmented body is covered in hardened chitin plates, with jagged spines protruding along its back. Six clawed limbs allow it to scuttle at terrifying speeds, while its elongated maw bristles with serrated teeth and a barbed tongue capable of piercing armor. Its earthy brown tones help it blend into cavern walls, making it nearly invisible until it strikes.

Behavior: Ravagers are solitary hunters, fiercely territorial. They stalk prey silently, using tremorsense to detect movement. When prey is near, they burst from hiding with a deafening screech, tearing flesh and bone with claws and teeth. They are drawn to magic, often attacking spellcasters first, as they instinctively consume arcane energy from their victims.

Legends: Some Underdark cults worship Ravagers as avatars of destruction, offering sacrifices to lure them into enemy tunnels. Surface dwellers rarely encounter them—those who do seldom survive to tell the tale.

Stat Block: Chitinous Ravager

Large Aberration, Chaotic Evil

• Armor Class: 17 (Natural Armor)

• Hit Points: 168 (16d10 + 80)

• Speed: 40 ft., climb 30 ft.

STR 20 (+5) | DEX 14 (+2) | CON 20 (+5) | INT 5 (-3) | WIS 14 (+2) | CHA 8 (-1)

Saving Throws: Dex +5, Con +8

Skills: Perception +5, Stealth +5

Senses: Darkvision 120 ft., Tremorsense 60 ft., Passive Perception 15

Languages: Understands Deep Speech but cannot speak

Challenge: 10 (5,900 XP)

Traits

• Magic Sense: The Ravager can sense magic within 60 ft. and will prioritize attacking creatures concentrating on spells.

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

• Chitinous Hide: Resistance to nonmagical bludgeoning, piercing, and slashing damage.

Actions

• Multiattack: The Ravager makes three attacks: one with its bite and two with its claws.

• Bite: Melee Weapon Attack: +8 to hit, reach 10 ft., one target.
  Hit: 21 (3d10 + 5) piercing damage.

• Claw: Melee Weapon Attack: +8 to hit, reach 5 ft., one target.
  Hit: 15 (2d8 + 5) slashing damage.

• Barbed Tongue (Recharge 5–6): Melee Weapon Attack: +8 to hit, reach 20 ft., one target.
  Hit: 18 (3d8 + 5) piercing damage, and the target must succeed on a DC 16 Strength saving throw or be pulled adjacent to the Ravager.

Legendary Actions (Optional for Boss Encounters)

The Ravager can take 2 legendary actions, choosing from the options below:

• Detect: The Ravager makes a Wisdom (Perception) check.

• Claw Attack: The Ravager makes one claw attack.

• Burrow (Costs 2 Actions): The Ravager burrows up to half its movement speed without provoking opportunity attacks.