Giving a fireball steam, ice, extra damage, silent invocation, or lack semantics, faster time, or any paraphernalia (or to add them), would require one chapter per affectation.
Perhaps there are substitutions or better ways to make magic items for that spell. Like an Ogre Maji horn for a wand of magic missiles, or the liver of a hydra to make a regeneration potion, or spell substitution.
I used to use Braille for underwater adventure spell casting, and lozenges for potions, or an athame for spell adaptations (silent, extended, or semantic substitution). They would require some pretty thick books to gain those talents, or to make those items.
What could you make with a Kraken's eye? Right?