There are Ioun Stones (at 8kGP) that boost stats: +2 to Int would boost kkill points, to Dex would boost AC.
Gauntlets of Ogre Power (4kGP) boosts Str, which helps drop foes faster, and generally speaking, dead foes don't hit back.
Bags of Tricks let's you play "pokemon".
While I wouldn't suggest re-doing the character, has she done any multiclassing to spice things up? A dip in Rogue (or Lurk, Beguiler, Spellthief, PsyWar, etc.) might season up the PC in a way she likes.
Gauntlets of Ogre Power (4kGP) boosts Str, which helps drop foes faster, and generally speaking, dead foes don't hit back.
Bags of Tricks let's you play "pokemon".
While I wouldn't suggest re-doing the character, has she done any multiclassing to spice things up? A dip in Rogue (or Lurk, Beguiler, Spellthief, PsyWar, etc.) might season up the PC in a way she likes.