Niiice. Thanks.
How about builds that use Druid 10 / Vermin Lord 10 on one side?
Regarding deaf enemies, Maw of Chaos, Mordenkainen's Force Missiles and Finger of Death should suffice.
That would be pretty hard if your DM enforces only one PrC per progression. If not, you could probably build a regular UM+SC+Master Spellthief one one side and whatever you like on the other side.
If you want just a hint of druid, the warblade levels bring nothing to the build so they can be exchanged for anything.
Against deaf enemies you could just use Black Tentacles. They are a no-save die, against monsters without freedom of movement, as well when your caster level is 390.
Also if you throw in the Unseen Seer levels, You could use Cloud of knives, and if you could get hunters eye on there you would kill anything you look at.
If you cast Steel Dance (spell compendium), and Ferocity of Sanguine rage, you can kill anything that comes nearby. +390 to attack rolls and +195 on damage rolls on everything you attack is awesome. You could also argue that you can cast Wu Jen Spells (since you have a Wu Jen Spellbook and wizards can cast spells from their spellbook) like Body Outside Body (Which would grant you so many copies it would be stupid).
In any event you always have Wings Of Flurry dealing 390 D6 of force damage to an area, only evaders can stop that.
So what you need to face for this to be not effective is:
A Chaotic, deaf creature with Freedom of Movement, and evasion who doesn't get within 5ft of you. And even then you are still a level 20 wizard (and a 10th level sublime chord) so you should just handle that situation like any other full caster would, or you could cast hammer of righteousness (from BoED) that will deal 390d6 damage to one target.
Actually I discovered there were a little flaw in the build so I changed it a little bit, if you fiddle around with the levels you can probably get a higher BAB (now it is +14), and better HD (which I haven't calculated) as well.
[spoiler]Spellthief 1//Wizard 1
Bard 1//Wizard 2
Sorcerer 1//Wizard 3
Duskblade 1//Master Specialist 1
Duskblade 2//Master Specialist 2
Hexblade 1//Unseen Seer 1
Dread Necromancer 1//Ultimate Magus 1
Wizard 4// Knight of the Weave 1
Wizard 5//Nar Demonbinder 1
Wizard 6// Rainbow Servant 1
Wizard 7// Sublime Chord 1
Wu Jen 1// Ultimate Magus 2
Beguiler 1// UM 3
Wizard 8// UM 4
Warblade 1// UM 5
Warblade 2// UM 6
Wizard 9// UM 7
Warblade 3// UM 8
Warblade 4// UM 9
Warmage 1// UM 10[/spoiler]