Greater Mighty Whallop?

[Brock Samson]

I don't have the Spell Compendium, but my understanding is it increase the size of your bludgeoning weapon/x number of caster levels, is there a similar spell for slashing/piercing weapons? And could this be applied to a bite attack, as bites are bludgeoning, slashing, and piercing (right?)?

[Curmudgeon]

Spell Compendium won't help you. (Greater) Mighty Wallop is in Races of the Dragon. I know of no similar spell for slashing or piercing weapons.