In America today, there's been a lot of drinking, grilling, and explosions.
In honor of this, I propose a call to a theme build: The Best Blastificer! (ECL20 worth of XP, 760K gold, all official D&D 3.x material allowed, and official magazine material too, because we're going for bigger bangs. And no loops. Let's also assume that abilities which reduce the cost of metamagics also affect the craft cost appropriately.)
Oh yes, "Best" in this case has 3 categories:
-Highest single-damage blast
-Most damage in a 20' radius spread
-Most overall damage in 10 rounds.
Why Blastificer? The
Mailman already does damage marvelously in an arcane fashion, and I wanted a different flair. And with Blastificer, there's the element of homebrew rockets.