The wording on the "Pokémon Reversal" trainer changed significantly between the Expedition version and the EX:Ruby/Sapphire version. How should we play this card? Do we play each one "as written", or should we play them all the way the latest (or older) version of the card says?
It should read like the Expedition version, with a slight tweak to make it 2-on-2 applicable. "Choose 1 of your opponent's Benched Pokémon. Flip a coin. If heads, your opponent switches that Pokémon. with 1 of his or her Defending Pokémon." The opponent chooses the defending, but the person playing the card chooses the benched.
Source: PUI Rules Team (2004-04-08)