Deep in Avernus, the Bone Whelk lives. This creature is a giant mollusk which forms it's shell from body parts that gets stuck on its sticky body. They scour the area feeding on whatever organic scraps they find, trying to hide from the Vrock as to not get eaten.

Classification: Large Monstrosity

Powers and Abilities: Superhuman physical characteristics, large size (Type 0; Are labelled as a large creature), bodily weaponry(Use their bite), adhesive manipulation(Their body is naturally sticky), enhanced senses(Has night vision), surface scaling (Via Spider climb), biological manipulation(Their dying scream causes organic matter to rot)

Attack Potency: Wall level(As a CR 1/4 monster in 5e they're comparable to casters who can use Burning Hands)

Speed: Subsonic(Comparable to beings capable of dodging point-blank arrows)

Lifting Strength: Peak Human(Due to being a large monster with a strength score of 10, they can at max push 272.155kg)

Striking Strength: Wall level

Durability: Wall level

Stamina: Superhuman(Should be on par with adventurers who can keep on fighting after their limbs have been hacked off)

Range: Melee range, several meters range via Death Scream

Standard Equipment: None notable

Intelligence: Below Average (Has an intelligence score of 6 which puts them between animals and average humans)

Weakness: None notable

Notable Attacks and Techniques:

•Adhesive: The Bone Whelk produces a substance which causes anything that touches it to stick to it.

•Death Scream: When a Bone Whelk dies it releases a blood curling scream, which also causes necrotic damage and thus rotting to anything in 10 feet radius of the Bone Whelk.