A Certain Scientific Omnitrix, Book 7: Saints of Destruction

After the defeats of Terra of the Left and Vento of The Front by Ben Tennyson, Acqua of the Back sends out a warning that he intends to destroy the Omnitrix and the one wielding it. In response, The Church of England sends the Amakusa Church to provide protection while the Plumbers send in forces of their own.

But can anyone protect Ben from a Saint Class magician powerful enough to even defeat the Ultimate Aliens with ease?