Immunity to Mind-Affecting Magic

Immunity to Mind-Affecting Magic [30]GURPS Magic, Demon meta-trait pg 155 is based on the assumption that an entire power source (biological, psionic, etc.) is Very Common while one particular focus, power, or college of magic is Common.GURPS Powers p. 72
This assesses the issue of setting dependent because otherwise in a setting where mana was low or magic was only Common.
==see also==
*Affected by Path of Spirit (instead of Body/Mind) magic
*Immunity to Magic (same value?)
*Immunity (All mind control) (same value?)
==References==
Category:Advantages