Protection from evil, awesome Grog!
I agree - except that if you understand undercommon (or if the illithid knows more
than one language and included is one you understand), it can simply tell you its
wishes (it is just a charm after all). I tend to assume the phrase "can prevent the
character from exercising control" as meaning "exercising control by telepathy".
SRD - Protection from Evil
Second, the barrier blocks any attempt ... to exercise mental control over the creature (as by a vampire’s supernatural domination ability, which works similar to dominate person). The protection does not prevent a vampire’s domination itself, but it prevents the vampire from mentally commanding the protected creature.
SRD - Dominate Person
The character establishes a telepathic link with the subject’s mind. ...
Protection from evil or a similar spell can prevent the character from exercising control or using the telepathic link while the subject is so warded, but it does not prevent the establishment of domination or dispel it.
As for the rest,
- Does Spell Immunity allow protection from Mind Blast or the other Illithid abilities?
I would probably fall in the camp of "No" regarding mind blast. As mentioned above,
even if you would treat mb as a spell that one could be immune to, it would likely be over
fourth level in power. Other abilties? Charm and Suggest? Sure! Detect Thoughts? Nyet (no SR).
- If the Illithid is pinned, with, say, Zone of Speed. And then Wall of Fire is cast around it. Would the SR have to be beaten just once, or every round for the duration of the spell to avoid taking damage? (You have a recipe for that fried calamari, Norfleet?)
I believe the common ruling is to make the check once per instance of the spell.
- Can Dispel Magic remove the effects of a Mind Blast?
After some consideration, I suppose I agree with Herr Doctor. "Blast" seems to
imply something less than ongoing.
However, I stand by the idea of stocking up on a couple dispel magics.
Just wait to cast until the flayer is levitating forty feet off the ground.
Then unshackle your fighter.
- If the Illithid is Astral Projected, can he actually do anything except direct his thralls?
Yep - The projection is a full on copy of the real thing. So it can behave as if
it were the real thing (that's 9th level spells for ya).
What can be done to dismiss or harm the projection? Dispel Magic?
Yep - Dispel magic would do the trick (against the flayers caster level of 8). Then,
as I mentioned before - TTFN my dear illithid. Buh Bye.
That should work, except that the skill you'd need is Psicraft, to recognize the attack mode by its display.
Er, what if you don't use the psi handbook? I would assume the regular spellcraft
check would apply, albeit with a high DC; I figured you could disrupt the ability,
but it was unlikely you could tell when the illithid was about to use it (knowledge: aberration, anyone?).
~D