glass said:AFAIAC, any circumstance of anything immune to non-lethal damage having regeneration is best solved by simply saying that creatures can still have damage converted to non-lethal, even if they can't have it inflicted on them directly.
This is probably a house rule, but it's not totally without precedent. Liches can polymorph themselves, despite being immune to polymorph.
glass.
It's much more scary for the players when the albino troll shrugs off everything except fire and acid damage.
A year later, my players still talk about the horror of fighting the albino troll. Fleeing the first encounter and loading up on fire spells before it caught up to them the next day.
