Changeling arms/legs takes over your mind

[Marquesas]

The changeling shouldn't keep any absorbed bodies when taking over a new body, since its pretty much the same deal as a headspider you've planted yourself.

Headspiders keep absorbed bodies, though, as far as I know.

I do like this. Changeling seeding isn't the only reason to attach a foreign arm to a person - you could always do it to hope that arm rejection will eventually murder the person. But for this to work, arm rejection should be chance based imho, and changeling arms should never be rejected by the body.