Your OCs step in Nevada for some extra cash, booze and booty. When they step in, all of the cannon fodder, super soldiers and main characters of Madness Combat series (including The Auditor) decide to attack your OCs. The Improbability Drive works at full capacity.
Scenario 1: If your OCs are too powerful, then the Drive will explode (which also makes The Auditor to explode) and the Normality Restoration Process will start. Your OCs can resist the process with their powers.
Scenario 2: Same as Scenario 1. Except that your OCs can't resist the restoration process and they need to escape.
Scenaro 3: The Improbability Drive (and The Auditor) adapts to the power levels of your OCs.
Can your OCs survive this bloody wackiness?