The All-important Judge Expert

Flash (You may cast this spell any time you could
cast an instant.)
Whenever a player says something that you
have said about the rules is wrong and says it is
something different, you may search through the
Comprehensive Rules of Magic for that rule.
Whoever said the correct statement about the
rule draws a card and The All-important Judge
Expert deals 2 damage to the player that didn't
say the correct statement.