XY - BREAKthrough
164-card expansion featuring Mewtwo EX, M Houndoom EX and M Glalie EX.
- Game
- Pokemon TCG
- Publisher
- TPC
- Release date
- 4 November 2015
- Cards
- 164
- Status
- Released
About this release
XY - BREAKthrough is a Pokemon TCG expansion in the XY series, released on 4 November 2015. The set contains 164 cards, including Mewtwo EX, M Houndoom EX and M Glalie EX, alongside Rare BREAKs, Ultra Rares and Secret Rares sought after by both players and collectors.
At current market prices, the complete set is worth around £1,665. Mewtwo EX leads the value charts, while sealed booster boxes, Elite Trainer Boxes and individual singles offer multiple ways to collect or build competitive decks.
New to the game?
What is Pokemon TCG?
The Pokemon Trading Card Game is a two-player game where each player builds a 60-card deck around a team of Pokemon and battles to knock out the opponent's Pokemon. Every time you knock one out you take a Prize card - take all of your Prizes (usually six) to win.
How a game plays
Each turn you draw a card, then play Basic Pokemon, attach Energy, use Trainer cards and attack. Attacks need the right Energy attached; when a Pokemon's HP runs out it is knocked out and the attacker takes a Prize. Basic Pokemon evolve into stronger Stage 1 and Stage 2 forms as the game develops, so a deck is about building an engine of Pokemon, Energy and Trainers that work together.
Read the official how-to-play guide →Most Valuable XY - BREAKthrough Cards
The most valuable card in XY - BREAKthrough is Mewtwo EX at around £196.
Chase-card prices powered by PulseTCG · updated 22 September 2026
XY - BREAKthrough Card List
Every XY - BREAKthrough card is listed below with its number, rarity and current UK reference prices — searchable and filterable.
Full card list
Every card-number record in the set, searchable and filterable. Select any card for its full details.
XY - BREAKthrough Rarities
XY - BREAKthrough has 164 of 164 cards currently revealed.
Rarity
- Common53
- Uncommon48
- Rare21
- Ultra Rare19
- Holo Rare16
- Rare BREAK5
- Secret Rare2
XY - BREAKthrough Booster Boxes & Products
XY - BREAKthrough has 6 sealed products across booster packs & boxes, decks, collection boxes, more from this release. The Booster Box includes 36 booster packs, 10 cards per pack.
Booster Packs & Boxes
Decks
Theme Deck
- 60-card ready-to-play deck featuring Lightning and Fire types, damage counters, coin, rulebook
Theme Deck
- 60-card ready-to-play deck featuring Psychic and Darkness types, damage counters, coin, rulebook
Collection Boxes
Elite Trainer Box
Elite Trainer Box
X · Y
- 8 BREAKthrough booster packs, 65 card sleeves, 45 Energy cards, dice, condition markers, player's guide, storage box
Sold out2 products →
Elite Trainer Box
- 8 BREAKthrough booster packs, 65 card sleeves, 45 Energy cards, dice, condition markers, player's guide, storage box
More from this release
Contents as listed by the publisher. Prices and availability update automatically.
Competitive Play
Continue exploring
Official resources
Frequently Asked Questions
When was XY - BREAKthrough released?
XY - BREAKthrough was released on 4 November 2015.
How many cards are in the XY - BREAKthrough Booster Box Booster Box?
A XY - BREAKthrough Booster Box Booster Box contains 36 packs of 10 cards each, 360 cards in total.
How many cards are in XY - BREAKthrough?
XY - BREAKthrough contains 164 cards. The main set includes 53 Commons, 48 Uncommons, 21 Rares, 16 Holo Rares, 5 Rare BREAKs, 19 Ultra Rares and 2 Secret Rares. The two Secret Rares are the rarest cards in the set.
How many cards are in the XY - BREAKthrough master set?
The base XY - BREAKthrough set has 164 numbered cards. A full master set — one of every card including reverse-holo and secret-rare printings — comes to 302 cards.
What is the most valuable card in XY - BREAKthrough?
Mewtwo EX 164/162, the Secret Rare, is currently the most valuable card in XY - BREAKthrough, worth around £196. Prices reflect market data as of 22 September 2026.
How much is a complete XY - BREAKthrough set worth?
A complete set of all 164 cards is worth around £1,665 at current market prices. Card values range from under £1 for commons up to £196 for the top chase card. Prices reflect market data as of 22 September 2026.
Is there a full card list for XY - BREAKthrough?
Yes. This guide has the full 164-card booster checklist with card images, search and rarity filters.
Is XY - BREAKthrough worth buying?
XY - BREAKthrough has 24 cards currently worth £10 or more, led by Mewtwo EX 164/162 at around £196. Its combination of high-value chase cards and playable cards gives it appeal to collectors and deck-builders, though sealed-product value depends on purchase price and pull results.
How do you price your cards?
The card prices shown on this page are current UK market values, sourced from PokePulse - a dedicated Pokemon TCG price tracker. We refresh them regularly, so you see an up-to-date UK valuation rather than a US price simply converted to pounds.
Which high-rarity cards are in XY - BREAKthrough?
XY - BREAKthrough's premium cards are its Rare BREAKs, Ultra Rares and Secret Rares — the set's highest-rarity treatments — including Mewtwo EX, M Houndoom EX and M Glalie EX.
What rarities are in XY - BREAKthrough?
XY - BREAKthrough includes Common, Uncommon, Rare, Rare BREAK, Ultra Rare, Holo Rare and Secret Rare cards, from the most common to the rarest.
How many XY - BREAKthrough cards are worth over £20?
15 cards in XY - BREAKthrough are currently worth £20 or more, led by Mewtwo EX 164/162 at £196. The rest are more affordable commons, uncommons and lower rares.
What are the best cards to pull from XY - BREAKthrough?
The most sought-after pulls are Mewtwo EX 164/162 (£196), M Mewtwo EX 160/162 (£139), M Houndoom EX 154/162 (£53.18), Gengar 60/162 (£42.80), Houndoom EX 153/162 (£37.03). These high-rarity cards carry most of the set's value.
Where can I find the official Pokemon TCG rules?
The full rules and how-to-play guide are published on the official Pokemon TCG website.
Where can I buy XY - BREAKthrough singles?
Individual XY - BREAKthrough singles are available to buy at Monster Card Corner.
