Come to think of it, Holy Word also has to break spell resistance... Also come to think of it, so does Blasphemy. So anyone with spell resistance will eventually break the endless cycle of being stunned by Blasphemy or Holy Word.
Miracle might be handy for the DM, since if it's almost a total party kill except for the cleric, you can just use a Miracle to cast a true ressurection on the whole party.
