Lanefan
Victoria Rules
Thuis is one of many places I completely disagree with how 3e did spells, though in fairness this might have carried over from 2e - I'm not sure. But yes, I have a 1e approach to many things.Lanefan- thanks for continuing the discussion on illusions. It seems that your take on them comes out of 1e, when I would run them pretty much like you suggest. The "no (hit point) damage from illusions" thing I'm taking from 3e,

OK, I see your reasoning.Anything that you think of as "save or die" is pretty much being modeled as ability damage of one sort or another (see Death Spell, Flesh to Stone). There are three reasons for me dealing Cha damage (and note that it's lethal Cha damage, so it kills you if you reach 0): 1. It's an illusion, so therefore it is psychosomatic; 2. Death Spell does Con; 3. It makes Cha more valuable (since an earlier comment that Int, Cha and Str seem less valuable than the other stats, I've been keeping an eye open towards rectifying that).
I haven't read your write-ups deeply enough to know whether abilities are tied to lots and lots of other things like 3e, or just a few like 1e. But if you're taking a 3e approach where all kinds of different rolls etc. are affected by your current ability score, my suggestion is to keep ability damage (ability changes of any kind, for that matter) extremely rare. Why? Because I found when playing 3e that constant ability score changes quickly became a bookkeeping nightmare; I kept losing focus on the story/battle/whatever we were doing because I was busy number-crunching instead. Bleah!
Fair enough, but be warned you'll have a headache once someone tries casting an illusion that is touch only...True, but ventriloquism was a 1st level spell, and you could use cantrips to provide odor or taste.
My theory is that it isn't which sense you're doing so much as how many that makes an illusion more powerful and difficult to cast (higher valence/level).

Ah, that's where we differ. To me, pain is pain (or loss of luck is loss of luck, depending how you define what hit points really represent) no matter how it arrives; and you're setting yourself up for a headache once illusionary and real damage start getting mixed together - I take 10 points from an illusionary rock landing on me, then 7 points from a sword, then 2 points when I get burnt by an illusionary fire, then 6 more points from the sword and 4 from a magic missile but now I disbelieve the fire and we've both forgotten how much damage it did to me... messy. And it'll fall to you as DM to track the illusionary damage taken by each PC separate from the real damage they've taken, and by source when there's more than one illusion going.Well, it hurts, it just doesn't do any actual damage. The creature thinks it does, though.
Sure, but once it disbelieves, the pain goes away.
Easier, I think, just to lump it all together.

Lan-"what is this thing you call a saving throw?"-efan