Re: Dysfunctional Rules IX: 1d3 Dysfunctions from the 8th Level List
Originally Posted by ShurikVch
While possible, it's unlikely: not just the book have some number of creatures with actual Fast Healing, but RAW for some creatures with Regeneration actually tells with what it should be bypassed
Please re-read closer your own quote:
Dang, you right.
Huh, that is pretty weird then. I'd assume they thought fire and acid were automatic unless noted, then.