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Browse every tracked card in BREAKthrough 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 and how it compares with the XY era.
Mewtwo EX defines BREAKthrough, the XY-era expansion that reached English-language Pokémon TCG players on November 4, 2015 under the set code BKT. It carries 162 official cards plus 3 secret cards above that count, for 165 printings in all. Mewtwo EX is printed six times and M Mewtwo EX four, so the set reads as a showcase for that Psychic line, with Chespin, Axew and Brigette each appearing more than once as well. Beyond Psychic, the set leans on Water, Colorless and Grass Pokémon.
BREAKthrough's chase ladder runs from commons, uncommons and rares up to 24 Ultra Rares and 2 Secret Rares, 26 chase-tier cards in all, with the secret cards numbered past the printed 162. Two Mewtwo EX Secret Rares by Mitsuhiro Arita hold the top two spots, followed by two M Mewtwo EX Ultra Rares illustrated by 5ban Graphics and a pair of Mewtwo EX Ultra Rares by Ryo Ueda. Value is concentrated: the five most valuable cards account for 56 percent of the set's total card value, so a handful of Mewtwo pulls carry most of the weight.
BREAKthrough was released November 4, 2015.
BREAKthrough has 165 cards.
BREAKthrough is part of the XY era.
26 cards in BREAKthrough sit at one of its hit rarities. See this set's hits page for the full breakdown by rarity.
As of October 2026, BREAKthrough ranks 7th by total card value among the 14 comparable XY sets, level with the era median, and 79th across the whole game. Its most valuable single card ranks 8th in the era, and it sits 5th for trading activity. At 162 official cards it runs larger than the era median of 113. It followed Ancient Origins, which holds more total value, and came before BREAKpoint, which holds less. Its cards first appeared in Japan across Red Flash and Blue Shock, both released on September 26, 2015.
| Measure | This setBREAKthrough | Previous setAncient Origins | Next setBREAKpoint |
|---|---|---|---|
| Release date | Nov 4, 2015 | Aug 12, 2015 | Feb 3, 2016 |
| Printed cards | 162 | 98 | 122 |
| Master set value | — | $3,469.12 | $1,102.81 |
| Most valuable card price | — | $1,172.00 | $210.28 |
| Priced cards | — | 101 of 101 | 126 of 126 |
The full BREAKthrough run is 165 printings, and all 165 are priced. Because the five top cards hold 56 percent of the set's total card value, the cost of a complete set is driven by the Mewtwo EX and M Mewtwo EX chase cards, while the commons, uncommons and rares fill out the rest. The sealed line is broad at 34 products, covering a booster box, booster packs, blisters, Premium Collections, decks and Elite Trainer Boxes alongside other sealed items.
Market comparisons as of October 2026.
Sealed BREAKthrough: all 34 products with prices
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