Neither side is holding back in a multibillion-dollar lawsuit playing out in federal court in Miami-Dade. Their pleadings are relentless — 52 in the last five months — and riddled with barbs in what has become one of the most visible fights over bitcoin in the United States.

Now, it is up to U.S. District Judge Beth Bloom to decide whether the complaint will survive a motion to dismiss. To help persuade her, each side sicced a team of litigators — and their best prose — on the problem.