Wisdom spell and IQ rolls for powers

[Kromm]

Things that raise IQ without specifically saying "but not for X" raise IQ for the purposes of X. In this case, if a friend raises your IQ with a Wisdom spell or some Affliction that raises IQ, your improved IQ does indeed benefit your IQ rolls to use advantages. You can safely assume that when GURPS Magic says "spells," it means "the individual IQ/H and IQ/VH skills that this book calls 'spells'" and not "anything that some magic system somewhere might decide to call a 'spell.'"