Completely soberly - we cast antimagic on the advancing infantry so that the mages don't bother them.
ANTIMAGIC is not a cure-all, and it needs to be cast very carefully, as it doesn't wear off until the end of the battle (as far as I know). And you just watch as your best units die:smile34:, because you won't be able to heal them, bless them, or enhance them with magic. :D