Yeah. A "Munchkin" is a person who is known for power gaming. He builds insane characters that can deal maximized damage, gnomes that cast level 5 spells at level 1, and other such things.
I Agree with the above spell. It should provide an Insight bonus. Perhaps that it only effects the cleric. IE: ClericA Uses Edit Time. He gains X To AC And to Hit for the next round.