The Pokémon TCG: Diamond & Pearl Mysterious Treasures expansion was released on August 22nd, 2007.
Press release pictures from this set have been added to an Imageboard thread.
Info:
The search for new Pokémon continues! In Mysterious Treasures, you'll catch the next wave of brand-new Pokémon that no Trainer has ever caught before. You'll find new gameplay options like Pokémon with Berries, new Fossils, more powerful Pokémon LV.X, and attacks that will change the way every Trainer plays. You will treasure the power when you play the Pokémon TCG: Diamond & Pearl—Mysterious Treasures expansion!
Diamond & Pearl Mysterious Treasures
Seek new Pokémon and you shall find... Mysterious Treasures! In the new Pokémon Trading Card Game: Diamond & Pearl—Mysterious Treasures expansion, players will catch the next wave of brand-new Pokémon that no Trainer has ever caught before. In addition to some great new gameplay options like Pokémon with Berries, new Fossils, and more powerful Pokémon LV.X, Mysterious Treasures includes a parallel set with a brand-new holographic treatment! Pokémon TCG: Diamond & Pearl—Mysterious Treasures features more than 120 new cards and remains compatible with previous releases.
Features:
- 25 new Diamond & Pearl Pokémon!
- More powerful new Pokémon LV.X
- New Fossil Pokémon and Legendary Pokémon
- Amazing Pokémon with Berry for more gameplay choices
- Two theme decks—"Armor Fortress" and "Skull Charge"—built around new Diamond & Pearl Pokémon!
- Each booster pack features 10 randomly inserted game cards
- Exciting holographic parallel set with new look for players and collectors alike
- Over 120 cards in all!
Source:
https://www.pokemon.com/us/pokemon-tcg/mysterious-treasures
Skull Charge / Armor Fortress Theme Decks
Skull Charge
Get ready... get set... CHARGE! The Skull Charge theme deck hammers away at your opponent’s defenses with Fighting and Grass Pokémon, especially Rampardos. With its Hasty Headbutt attack and powerful Pokémon behind it, Rampardos will lead the charge against any opponent!
Armor Fortress
Hold down the fort with the Armor Fortress theme deck! While your Metal and Water Pokémon hammer away at your opponent’s forces, Bastiodon puts its Protective Wall around your entire Bench. But after your opponent tries to break through your defenses, Bastiodon turns the tables with its Anger Revenge attack!