SomethingAwful’s got the goods. Gulf War II: The Reckoning! collectable card game. Print off a few and slip them into your Magic deck and see what your opponent does!
I especially like the Weapons Inspections card: “Remove all enchantment, artifact and non-basic lands from game. At the end of any turn, return all enchantment, artifact and non-basic lands to play removed in this way. Or look at target player’s hand and remove all instants.”
Steven Den Beste is fond of the U.N. card. Aren’t we all?