The Cardinals serve as the elite shock troops/assassins of the Universal Church of Truth. The Church collects the Prayer Power of it's trillion-plus faithful worshipers, literally soaks up the belief of its believers. It then converts that prayer power into energy and stores it in belief batteries. The Cardinals can tap into that immense power reserve, giving them the power to do anything if they believe they can. They're powers are not unlike those of the Quantum Bands.