
Bellona |

I'm a player in second darkness with a gnome illusionist with Spell focus/greater spell focus, spell penetration with an abberrant heritage. I'm looking for good prestige classes, feats or spells that might fit well within the campaign and for my character. Any ideas?
I don't have any aberrant-related suggestions (is it the Lords of Madness type of heritage, or something Pathfinder-related?). However, I can list a few possibilities for the gnome and/or illusionist side of things.
Unearthed Arcana (reproduced in the SRD) has some illusionist variants. If you're not attached to the idea of your character having a familiar, or certain other class features, then you can find some pretty interesting alternative class features there.
I would suggest that you look at Races of Stone. It has some specific class substitution levels for a gnome illusionist (levels 1, 5, 10), plus the Shadowcraft Mage prestige class (5 levels, full spellcasting). Remember to take a look at the feats in that book.
Complete Mage has the Master Specialist prestige class, which is useful (10 levels, full spellcasting). You might also like to look at reserve feats in that book (take the right ones, and you get a boost to caster level for certain categories of spells).
Don't overlook the Archmage prestige class in the DMG.
While illusions can be great fun to play with, remember to keep some spells on hand to deal with spell resistant foes, or those who are simply immune to mind-affecting magic.