GreyLord
Legend
How about one spell before the party gets there: teleport.
To a location where he can buff up and annihilate the party?
It really seems like you don't know much about playing a caster (no offense, neither do i). I mean you have never heard of Contingency? Extend Spell?
Check out Quicken Spell and Persist Spell (24 hour buffs). Check out Abjurant Champion that cast abjurations as swift actions.
There are many ways for a mid to high level wizard to guarantee: time for buffing, going first, etc. You just have to know them and use them.
As for immunity to critical hits, there are numerous spells and items that provide this.
As I said in my very first post, a monk (and particularly a cheating one) can take out a badly played wizard.
Yes, I have actually, even pointed out the weakness with Quicken. Contingency unfortunately with this specific group, as I stated before, has been banned from me using it. I actually utilized ways (aka...loopholes, some may say a little DM rule bending? to be able to create a way for multiple contingency spells at a time...which is where the banning came in...etc.).
Teleport is a nice idea if the Wizard thought he'd lose. Normally in a straight up fight at high level I don't lose. Normally the party would have gotten blasted...and in fact most times have done TPKs unless they retreat against the BBEG and figure a better way then straight on in a head to head fight.
I'm not that helpless...still didn't stop the monk from one round shutdown of the main caster this time around.
I let their good rolls be good rolls though, and let them do the damage that they feel they should. Of course it also means if I make my saves against the wizards weak save or dies...then I make my saves and do the damage right back at them.
I go for the kill instead of defense typically, kills the party in a straight up fight rather than waiting for them to kill me. Typically it also works.
Quicken spell typically isn't worth the bang for the buck. With only two to three 8th level spell slots, I can kill an entire party with two 8th level spells if I'm lucky...Stoneskin doesn't kill a soul...same with Polymorph...though if you want to go head to head melee it could be a good idea...otherwise...I prefer to cast the much more powerful 8th level spells in my 8th level slots.
For feats beyond core, I'd actually prefer Twin Spell over Persistent spell in some cases...though I do like Extend spell when in combat, normally on the effects on OTHERS rather then the BBEG though.
I'm more of an offensive attacker than defensive...finishing off the enemy parties in 2 to 3 rounds max.