Looking for a fun prestige class

[molten_dragon]

One of the campaigns I'm currently playing in is a 3.5 campaign that's running Return to the Temple of Elemental Evil. We're currently 8th level, and the characters in the party are:

Goliath warblade (me): Focused on massive melee damage with some tanking ability, mostly stone dragon maneuvers. Certainly not a broken character, but definitely min/maxed to a decent degree.
Whisper Gnome Rogue7/Swordsage1: Also focused on massive melee damage as well as skills/trapfinding. Also min/maxed fairly well.
Human Cleric/Radiant servant: Mostly a healbot/buffbot, not min/maxed and not interested in it at all.
Human druid: New player, don't know what she's going to focus on yet, doesn't know enough about the game to know how to min/max yet.
Human warmage: Also focused on massive damage (not that a warmage has much of a choice), min/maxed a bit.

The issue we're having is that most of the combats we run into are a joke. Fights with things that have a CR 3-4 above our level are generally over in 2-3 rounds. I'm not sure we've ever had a fight last longer than 5 rounds. The DM is trying to adjust things for us, but the whole reason he's running a module is because he doesn't want to have to do too much work between sessions.

Therefore, I'm looking for another class I can take (prestige or otherwise) that won't necessarily gimp my character, but will help broaden his focus away from straight melee damage. I want something fun or cool that'll let me still help the party out in ways that aren't simply 'I smash it for massive damage'. Any suggestions?

[deuxhero]

Ur Priest?

[Prodan]

Cancer Mage?

[Drascin]

Well, if you want to have an easily-accessed prestige that adds stuff while not being overly powerful, you always have Pyrokineticist . Costs all of one feat to enter, doesn't give anything too strong, but hey, you're on fire, which is always cool.

Alternatively, you could get a couple Wizard levels and go for Jade Phoenix Mage, because they get the coolest capstone ability ever, and for the next few levels you'd get some handy low-level utility spells instead of maximizing your damage more.

[Amphetryon]

Stoneblessed (Dwarf) into Battlesmith...

[Optimystik]

Drascin has the right idea - if you're getting bored with just martial stuff, mix in another system.

Pyrokineticist
Incarnum Blade
Jade Phoenix Mage