Capricorn

Capricorn is one of the Zodiacs, the sea-goat boy who lives with the witches and magical creatures in the swamps. His element is Earth and his most flexible body part is the knees, which got so flexible that transformed his legs into a couple of monster tails.

He loves to study potions that defy nature and make the body better in all sorts of ways, specially those that increase flexibility. Thanks to the consumption of many weird substances, his body became all soft and squishy and his limbs mutated in some really, really strange ways.