Drawn by https://www.weasyl.com/~datblangry
This is the form I have; they are a species in a vore game my girlfriend and I have had planned for a long long time, Deceivers aren't the main focus of the game but they're a cool concept, like a mix of a Mimic and a slime person only with more control. Most of the important info is up there already.
While I can survive being digested in this form, I wouldn't widely show it off, that way predators wouldn't think to make sure about my core, I'd be out of them eventually and can regain some kind of shape to get away (I'd lose some mass inside which would also throw them off to me being alive and I'd be in a more slosh-y form by then).
Deceivers at first seem over powered but there are ways and means to defeat them and there's complex interactions that can happen between them and lots of stuff I've thought about but is too long and boring to put here unless people get super interested.