Traits

[Potion item]: Bone Juice

An outcrop of skeletal structures attached to or emerging through a leech's body.

Leeches don't naturally have bones, therefore leeches with this trait are considered cursed and they are often outcast by other leech monsters. To make it worse, the process of growing bones itself is incredibly painful, and a leech will often have chronic pain due to unnaturally forced nerves and connective tissue around the bone structures.

Note: The bones can be free-standing such as vertical rib shapes, but must still be a fused part of the leech's body; for example, a skull replacing the upper portion of a leech's face is allowed, but a free-hanging skull on a pelt hoodie is not.
Limbs and traits such as hand ears or wings can be combined with this to create skeletal limbs, but it cannot be used to replace parts of a leech that require vital tissue, such as the entire head or neck.