100 Word Fiction Challenge: The Best Defense

“Faith?” The Wizard’s laughter shook the sky as the horde behind him joined in. “My mages, warlocks and minions number in the hundreds, my swordsmen the thousands and you would face us alone with but faith?”

‘Yes” Replied the man standing alone between the city and the multitude. “All I have is faith…”
he began, and the horde, led by the wizard, roared in laughter

“…the size of a mustard seed.”

Suddenly even as the rest continued to cackle, the wizard’s laughter died abruptly in his throat and the man saw forming in the wizard’s eyes the beginning of wisdom.