pokemon diamond pearl booster pack & Pearl: Majestic Dawn In the new Pokémon Trading Card Game Diamond & Pearl 2 Player

Its from the Mega Evolution set, and several art variants of the card exist

See the example below: If you have Stitch - New Dog in play and decide to play Stitch - Rock Star, you can play Stitch - Rock Star on top of Stitch - New Dog for a reduced cost (In this case, 4)

1 Urban Daggertooth

On the other hand, we played against Mono-Black Auras, which was overloaded with Dead Weights and Mire's Grasps, and it felt like we had zero chance of winning (in part because of the amount of removal our opponent had and in part because enchantments get around many of our sideboard cards, like Miscast and Seasoned Hallowblade)