Traits

Lacking a tail.

Not required for injuries.

Parts of the body can detatch and float.

A magical aura surrounds the wanderling.

It can manifest as anything from a glow to floating objects. Does not allow living creatures.

Parasites have attached to the wanderling, feasting on their magic.

This typically weakens their abilities, but in rare cases, can improve them, with the parasite acting as a "backup supply" of mana.

Lacking a mouth.

The body is made out of toy material, such as fabric and stuffing, or plastic.

The body is made out of food or drink. 

Not required for essence treatlings, as their body is already made of their origin.

Can be combined with fins to make a mermaid tail.

Very powerful magic, allows any ability, even overpowered ones.

Sentient tail, swarms of bugs living on the body, ect.

Two or more wanderlings born from one origin. They may have differing appearences and personalities. 

Small creatures live by the wanderling's side, helping them with life.

They can be summoned and dismissed as pleased.

Plants grow on or in the wanderling's body.