I'm trying to understand the Fast Healing ability. It's supposed to be "just like natural healing." But natural healing requires a full night's rest (8 hours of sleep or more.) Does this mean that creatures must sleep for their fast healing to work? Or in the case of monsters that don't sleep, do they need to rest, at least? Will they heal while taking move-equivalent actions? Or will they heal even while attacking?
My understanding is that fast healing being like natural healing is in regards to what it can heal. It can heal hit point and ability damage, but not ability drain or level loss. It cannot regenerate lost body parts and doesn't work when you are dead (or the equivalent). Otherwise, you gain the listed number of HP per round as long as you are active. Otherwise it's a pretty useless ability for most monsters to have as few are expected to survive contact with the PCs.
If the monsters are of limited intelligence, I agree with you. A clever opponent with Fast Healing, though, would be harder to finish.
1) Meet the PC
2) Battle, the PCs use some resource to try to get the guy down
3) When at 5-10% of his HP, the guy flees (or tries to, really)
4) Return a few rounds later, fully healed, while the party tries to rest (and after the possible previous summons have disappeared)
5) Rinse and repeat
There are interesting scenario hooks if the foe is humanoid, too. Unconsciousness doesn't equate to death. It'll be creepy to meet the same guy over and over when you thought him dead.
Yeah. I've pulled that trick on my players several times. They've learned, when looting bodies, to stab everything with fire. However, the issue still remains that Fast Healing is sort of like a poor man's regeneration (Con-less man's regeneration?). It just works all the time, unless it's dead. It wouldn't list the healing in rounds if it were not supposed to be used in combat. It would be listed per minute or per hour or even per day if it were meant to only be used during extended rests.
My understanding is that fast healing being like natural healing is in regards to what it can heal. It can heal hit point and ability damage, but not ability drain or level loss. It cannot regenerate lost body parts and doesn't work when you are dead (or the equivalent). Otherwise, you gain the listed number of HP per round as long as you are active. Otherwise it's a pretty useless ability for most monsters to have as few are expected to survive contact with the PCs.