My build: Transmuter 5/War Weaver 5/Spellguard of Silverymoon5/Abjurant Champion 5: essentially a low-cheese, party-friendly version of Valdrex's Ultimate Warweaver.
The DM ruling: Selective Spell (Su) PGtF p76 was clearly meant to be used with spells like fireball. I asked how it would work with Solid Fog, for example. Per DM, "unaffected" characters have not ill effects at all, including vision, movement, etc.; the fog would be a faint shadowy effect, noticeable, but unimpairing.
The question: What are the best spells to make use of this? Party is 3 meleers, 1 archer, caster cleric, and myself.