Mandragora

A mandragora looks like a freshly pulled tuber that has grown into the malformed shape of a child with a grotesque face and hideously bloated body. These insidious little plants typically form when a mandrake root is watered with a demon's blood. Upon absorbing the otherworldly properties of the demon's blood, the root animates and is forced to seek out blood to feast from, lest it die of thirst.

Always famished and in search for sustenance, mandragoras live haunted, pained lives and perform vile and desperate acts to acquire the blood they crave. Though mandragoras prefer magically infused blood such as that of unicorns, fey, or sorcerers, and they can subsist on potions, alchemical bombs, and magical elixirs, they'll settle for the blood of non-magical creatures as a last resort. They find the flavor of mundane blood to be bland and bitter, and they don't blanch at voicing these complaints to the creatures on whom they feed.

While the typical mandragora is the size of a human child, some continue to grow and grow, even reaching sizes comparable to giants. Sometimes as they get larger, they form additional limbs or rudimentary faces, eventually transforming into truly hideous mockeries of the human form.