| zaphod77 |
Sneak attack damage is possible with spells that roll to hit, if you are within 30 feet.
Sneak attack damage with a spell is th same type of damage as the spell. e.g. sneak attack damage from an acid arrow is acid damage.
Ability damage is a special type of damage, therefore it is damage.
Therefore if a spell uses a roll to hit, and deals ability damage, the sneak attack damage is also ability damage. There was a ruling made for 3.5 that said it as negative energy damage, but this rule was not carried forward that I can see.
Most spells that used to deal ability damage now apply an ability penalty, so you can't sneak attack with them.
Calcific Touch still deals ability damage.
Greater Invisibility+Calcific touch=sneak attack that deals dex against ac 10 for normal size targets. If you hit and beat spell resistance, you can have a decent shot at insta petrify, as the save does not prevent the damage.
RAW, this appears to work. Calcific Touch is clearly intended to be able to reduce Dex to zero so it can paralyze. it's supposed to take multiple hits to do so.
Is there some obscure rule that exists in pathfinder that prevents this stunt?
If not, i propose one of the following fixes.
1) import the obscure rule from dnd that sneak attack damage from an ability damage/drain/negative level attack is negative energy hp damage. This fixes every possible existing and future case.
2) rewrite Calcific Touch such that it applies a stacking penalty that can equal the current stat, and when it does so, petrifies the target as intended, but cannot have sneak attack damage added to it.