Originally Posted by dungeonnerd
Also, don't be afraid to push out your epic spells. Using the seeds and some careful math, you can make spells that literally do anything. Make it rain down meteors in a two mile radius all day? No problem. Emit an aura that heals you and any nearby allies for several hundred points a round all day? Easy peasy.
OP doesn't have Epic Spellcasting. He should get it, if his DM will tolerate it. You can also bring in some pretty scarily-powerful creatures through the Summon seed, and generally snap the game like a twig (especially if he uses DC mitigation). Summon creatures with big spellcasting (or strong anti-construct abilities) to do your dirty work for you (or just aid your DC-mitigation rituals
Get Rods of Chain Spell, and slap those on any nasty damage-dealer spells you have. Actually, get the other metamagic rods too, for "free" metamagic, lulz, and win (Rods of Extend are a cheap way to increase your buff rotation). It should be well within your 4 MILLION gp budget as a 30th level character.
What is our Wizard's objective, exactly? Some background would help.