I'm not confused. That portion of my comment was in reply to Taranis, who posted above.
The words I chose were correct.
And I agree that the roll should be about harming the creature to make it easier to kill, hence my comment about how it should impact the hit point total.
I commented mostly on your OP post:
Us should turn against our characters if we attack other thralls.
My answer to this is no, they shouldn't because:
an Intellect devourer is not supposed to care about thralls at all. They are just thralls a-ka slaves. While our characters are tadpole bearers, his masters' children.
In your answer to Taranis you used "subservient" and "loyal" as if they are synonyms, while they aren't ones for real. Here:
I don't think it should make Us more subservient though. That doesn't make sense to me. Why would sticking your thumb in the creature make it more loyal?
And still I merely pointed out that the term the game uses originally ("subservient") can be understood as "not being able to resist". I didn't comment on your choice of words.