The legal equivalent of MOAB would be a new judicial tribunal, established by Congress, to decide cases involving constitutionality of actions by the Executive or Legislative branches. There is no reason that any District Court judge in the US should have the power to decide that a law or executive action is unconstitutional, and stop its enforcement for years, at least. The Constitution did not grant this power to the Judiciary; they grabbed it in the earliest days of the Republic in the Marbury v. Madison case.
Thanks for pointing out where this usurpation (”decide that a law or executive action is unconstitutional, and stop its enforcement”) started:
“...The Constitution did not grant this power to the Judiciary; they grabbed it in the earliest days of the Republic in the Marbury v. Madison case.”
Marbury vs Madison 1803.