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| 構築ハーフデッキ 守りのトリデプス
| Release date
|| March 2, 2007
Bastiodon the Defender (Japanese: 構築ハーフデッキ 守りのトリデプス Constructed Half Deck Trideps the Defender) is a Japanese-exclusive Half Deck that complements the Secret of the Lakes expansion of the Pokémon Trading Card Game.
All of the Pokémon cards included in this Half Deck are identical to the cards found in the main expansion with the exception that they feature different artwork. The alternate art prints of Magmortar and Shieldon were printed in English as DP Black Star Promos, and Bastiodon was released in POP Series 6. The other alternate art prints remain exclusive to this Half Deck. The Trainer card Armor Fossil also features very slightly different artwork than its main expansion counterpart, which remains exclusive to this Half Deck.
Like other Half Decks, Bastiodon the Defender also includes a rulebook, damage counters, status counters, and a custom coin.