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Browse every tracked card in Master Deck Build Box EX with live prices, 24h moves, and collector details. Use Hits and Chase when you want a focused view of the set.
Release date, card count, chase cards, value and how it compares with the Black & White era.
Master Deck Build Box EX is a Japanese Pokémon TCG deck product from the Black & White era, released on September 14, 2012 under set code MDB. It is a compact set, with 46 catalog printings, built around EX Pokémon and staple cards for assembling a deck. The headline cards are Mewtwo EX, Darkrai EX and Rayquaza EX, with Victini and Reshiram close behind. Zoroark appears twice, which makes it the one name printed in more than one version across the card list.
Master Deck Build Box EX was released September 14, 2012.
Master Deck Build Box EX has 46 cards.
Master Deck Build Box EX is part of the Black & White era.
Master Deck Build Box EX has no secret cards above a printed count, so the interest sits in a short run of EX and key Pokémon. Mewtwo EX is the most valuable card in the set, followed by Darkrai EX, Rayquaza EX, Victini and Reshiram. Value is spread more evenly than in most sets, since the top five cards hold 45 percent of the set's total card value. The most valuable cards are headline Pokémon, and a complete set costs more than that handful of cards alone.
As of October 2026, Master Deck Build Box EX holds the highest total card value among the 6 comparable Black & White sets, about 2.2 times the era median, and its Mewtwo EX ranks 2nd among the era's single most valuable cards. Across the whole game it ranks 35th of 110 sets by total value. It followed HSZ: National Beginning Set, which holds less total value than Master Deck Build Box EX, and came before BKB: Black Kyurem-EX Battle Strength Deck. Its cards reached English players in Legendary Treasures, which shares 19 cards with it and arrived 13 months later, on November 6, 2013.
Written from market data as of October 22, 2026; the tables update live.
| Measure | This setMaster Deck Build Box EX | Median of 5 deck productsBlack & White median | Previous setHSZ: National Beginning Set | Next setBKB: Black Kyurem-EX Battle Strength Deck |
|---|---|---|---|---|
| Release date | Sep 14, 2012 | — | Apr 20, 2012 | Oct 19, 2012 |
| Cards | 46 | 18 | 34 | 18 |
| Master set value | ≥ $140.20 | $64.75 | ≥ $12.59 | ≥ $41.21 |
| Most valuable card price | $14.99 | $11.04 | $6.00 | $15.99 |
| Priced cards | 21 of 46 | 13 | 3 of 34 | 8 of 18 |
A full run of Master Deck Build Box EX is 46 catalog printings, of which 22 are priced. With the top five cards holding 45 percent of the set's total card value, the cost of a complete set depends heavily on Mewtwo EX, Darkrai EX and Rayquaza EX, while the rest of the list stays comparatively modest. Zoroark's two printings are worth noting when working through the card list, since both versions count toward a full set.
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