Wordplay

Let's see now.

Warmup:
Professor Kaplan is a brilliant, if somewhat abstruse, scholar of the conceptual foundations of jurisprudence.

Now, for real:
Yet even his formidable armamentarium of rhetorical skills is insufficient to render his architectonics of law in mellifluous, straightforward prose.

There, I did it. Pay up.

I'll leave the part about putting it into iambic pentameter as an exercise for an intrepid reader. I gave up on that several centuries back.