So, I seem to remember some rule about the damage needed to cut free of being Swallowed Whole needed to be done in one attack. But as I read through the rules text in preparation for my next session, I can't find anything about that.
So... if the cut-free damage threshold is, say, 18, and a character does 10 damage with one attack, then next round 8, does he get free? Or does it need to be 18 damage in one attack? 18 damage in one round? Not sure how to run it.