Remember.
You do your hardest to remember, trying to evoke "muscle memory" of your powers as humans would put it, but nothing happens. Wherever you reach, it just isn't there.
Then you feel faintest tug, a tiny pull that would easily go unnoticed. You follow this sensation with your eyes and see how that other body snatcher leaves the puppy it is possessing and dives into the adult dog. Apparently you can sense when somebody uses their power. You have no memory of such ability, but then again you have no memories many other things either. Like why did you decide to possess a dog rather than something more capable, like a human.
Concentrate really hard, and try to jump bodies into the mother dog.
It doesn't take much concentration, no more than attempting to jump with physical body. The moment you jump out of the puppy a terrible sensation of
fading takes over you, like you would fade out of existance in matter of seconds. The feeling tells you clearly that you cannot exist without a body very long. It also endowes you with a certainty; this sensation shouldn't be this strong. You
should be able to survive without body many minutes.
With this existential threat gnawing your courage you finish your jump and dive into the corpse. Heart restarts with a jolt, torn blood veins close, wounds start healing and bones begin knitting back together. You open your eyes just in time to witness how your previous body turns to gray stone like concrete and crumbles into finest dust. Gentlest touch of wind disperses the tiny pile of dust completely, as if it never existed.
...you are not sure if that was supposed to happen.
Think about my current powers, maybe there's something more to it.
Clearly there must be more, considering how that possessed puppy turned into dust when your companion left it. You are a body snatcher, so your powers must revolve around body. That's a logical conclusion, but logic doesn't always apply on creatures of magic. For example, dwarves aren't small like story of Snow White would let you believe.
Can I waitlist?
Of that I'm not sure. If one of our body surfers stops posting then I need someone to take over. We'll see if there will be opportunity and reason to introduce another being.