Lunidex
Gotta catch 'em all...
Diamond & Pearl
It has eyes that can see through anything. It spots and captures prey hiding behind objects.
Once during your turn, when you play Luxray from your hand to evolve 1 of your Pokémon, you may look at your opponent's hand. If your opponent's Bench isn't full, choose 1 Basic Pokémon from your opponent's hand, and put it onto his or her Bench. Then, switch it with the Defending Pokémon.
Lightning · Lightning · Lightning · Lightning
Move all Lightning Energy attached to Luxray to 1 of your Benched Pokémon. (Ignore this effect if you don't have any Benched Pokémon.)