Shifter

Shifters
Shifters are carnivorous creatures who can 'shift' into anything they have seen.

Behavior
Shifters will approach their prey, and shift into something to distract them. Occasionally, they can even read the minds of things, for example, when one is targeting Olive it finds that her worst fear is for people close to her to get hurt, so it pretends to be her mother, and when pretending to be Cassia, it reads her mind to know what to say. They can't use magic though, so that is a good way of identifying them.

Weakness
Their one and only weakness is their back. If you can find a way of gating round them, then they have a weak spot on their back. Often, the only way to get round is by going invisible, or teleporting.