The level 20 capstone ability is phrased as follows:
At 20th level, while a spiritualist's phantom is confined in her consciousness, she is immune to mind-affecting effects and spells and effects that involve possession, such as magic jar and possession.I read this as being immune to:
- (1) all mind-affecting effects; and
- (2) spells that involve possession; and
- (3) other effects that involve possession.
However, grammatically this is ambiguous, and I've read other people interpreting this as if the immunity to mind-affecting effects is also limited to those involving possession.
For now, I'm comfortable with my interpretation. But seeing people are reading it in a more restrictive manner, I'm putting it out here.
I do wonder if there's insights on the forums on what people feel would be the better interpretation, and why. And maybe a pointer to what the RAI is.
I'd have to say your interpretation is correct... I've just spent the last two days going over possession rules... so... yeah...
Anything that is considered 'mind-affecting' -> Immune.
Anything that attempts to possess you (from Ghosts to Intelligent Items) ->Immune.
It's grammatically ambiguous, but the usage is clear. To interpret "that involve possession" to apply to the whole thing, the group of things that would apply to would be "mind-affecting effects and spells and effects". That is twice-redundant and thrice silly. The entire "mind affecting effects" part of that clause would be useless, as all mind-affecting effects are, of course, effects.
The only justification for the wording used is that the spiritualist is immune to both (a) mind-affecting effects and (b) spells and effects that involve possession.