A double attack, or two attacks with two weapons, would count as one action.
Not that splitting attacks is all that useful anyway these days when we have skill reductions and multiple parries - it's rare that it's a good idea.
I think the big difference here is between a properly permanently consecrated space, and one where you need to cast Sanctify every time first. Your example might be a temple, but not a Temple.
Heal Body works - it heals damage regardless of source. So while it doesn’t cure the poison, it heals up all the damage afterwards (which lesser healing spells can’t).
Seriously though, this is so obvious and blatant that it needs to be fixed. It’s not like most of the things here that are convoluted and weird. For a minimal investment and no bending of the rules, shamans have infinite free MP.
For a shaman, the Shaman Power Power Within combined with a simple Heal 1 spirit magic spell, means that you have a limitless supply of Magic Points. You sacrifice 1 HP for 1d6 MP, and then you heal up that HP using one MP.
Personally, I think it’s silly. Someone slams a big honking poleaxe into your shield, that has every chance of doing damage, and certainly way more than a shortsword!
Especially since whip weapons explicitly are a thing (belonging to the Water rune).
It’s okay to say you just made a mistake and that these weapon details are forthcoming (or that you made a mistake and there will be no whip weapon). Positing a special skill for non-weapon whip that’s not in the rulebook and doesn’t do anything is silly (use of a whip for riding and charioteering should by any standards belong to that skill).
Carapace is hella nasty if you're trying to bring them down with weapons, though. Natural Armor + Carapace + Armor is a lot.
My PCs spammed Thunderbolt, which is definitely cheating! 🙂