Traits

The soul mark takes the form of a tail or tails sprouting out of the character's body.

The soul mark(s) take the form of horns on the head of the character.

The soul mark covers/consists of the torso of the character.

The soul mark replaces any number of limbs on the character.

The soul mark is on, or makes up, the head of the character.

The soul mark takes the form of wings sprouting off of the character's body.