BREAKthrough
XY · BKT · 2015
Pokémon TCG expansion

BREAKthrough card list

165 cards in the XY Series, led by Mewtwo-EX at $208.35.

■ Highest-value cards

BREAKthrough chase cards

  1. Mewtwo-EX Rare Secret #163

    01 · By price

    Mewtwo-EX

    #163 · Rare Secret

    $208.35

    Tracked USD · holofoil ·

  2. Mewtwo-EX Rare Secret #164

    02 · By price

    Mewtwo-EX

    #164 · Rare Secret

    $204.55

    Tracked USD · holofoil ·

  3. M Mewtwo-EX Rare Ultra #160

    03 · By price

    M Mewtwo-EX

    #160 · Rare Ultra

    $148.01

    Tracked USD · holofoil ·

■ Full set

Complete BREAKthrough card list

BREAKthrough contains 165 cards, including 162 main-set cards and 3 secret rares. Search by name or card number, filter by rarity, or compare prices.

165 of 165 cards

■ About this set

What is BREAKthrough?

BREAKthrough is a Pokémon TCG expansion released in 2015 under set code BKT, part of the XY Series. Chase Season lists 165 cards across 8 rarity tiers, from base commons through the rarest special illustration pulls. The rarity breakdown shows how chase tiers are distributed within the expansion. Each card carries a Chase Index — a community-driven signal of what collectors are actively chasing right now.

■ Key facts
Release date
November 4, 2015
Set code
BKT
Series
XY
Total cards
165
Chase tiers
2 cards · 1 tier
Reverse holos
138
Rarity breakdown
Common
53
Uncommon
49
Rare
21
Rare Holo
16
Rare Ultra
10
Rare Holo EX
8
Rare BREAK
6
Rare Secret
2
■ Series context

How does BREAKthrough fit in the XY Series?

BREAKthrough sits in the XY Series, released in 2015. It follows Ancient Origins (2015) and precedes BREAKpoint (2016). Browse adjacent expansions below to compare chase cards, rarity distributions, and market trends across the series.

■ Common questions

Frequently asked about BREAKthrough

Pricing, rarities, release info, and pack value — answered with current market data.

How many cards are in BREAKthrough?

Chase Season lists 165 cards in BREAKthrough. Every card is linked in the complete checklist above.

What is the most valuable card in BREAKthrough?

The highest-priced tracked card in BREAKthrough is Mewtwo-EX (Rare Secret), currently priced at $208.35 in the tracked price data.

What are the top chase cards in BREAKthrough?

The top chases in BREAKthrough are led by Mewtwo-EX 163/162 at $208.35, then Mewtwo-EX 164/162 and M Mewtwo-EX 160/162. See the leading chase cards, ranked by current market value.

When was BREAKthrough released?

BREAKthrough was released on November 4, 2015 as part of the XY Series. It carries the set code BKT.

How is the Chase Index calculated for BREAKthrough?

The Chase Index is ordered by active collector chases. Within BREAKthrough, cards with more active chases appear first.

Is BREAKthrough rising or falling in value?

Tracked cards in BREAKthrough have moved -0.5% over the past 7 days and +3.5% over the past 30 days, based on market prices.

What rarities are in BREAKthrough?

BREAKthrough spans 8 distinct rarity tiers across 165 tracked cards. The most common are 53 Common, 49 Uncommon, 21 Rare. The premium rarity tiers include 2 Rare Secrets.

Which Pokémon are featured in BREAKthrough?

The headline cards in BREAKthrough feature Mewtwo-EX, M Mewtwo-EX, M Houndoom-EX, Gengar, alongside other species across the set's 8 rarity tiers. These examples are selected by current market value. The Chase Index ranks cards by active collector chases.

What card variants are available in BREAKthrough?

Beyond the base print, BREAKthrough includes 2 chase-tier cards across 1 premium rarity (2 Rare Secrets), plus 138 cards with a reverse-holo variant. Each variant is priced and tracked separately on Chase Season.

How does BREAKthrough compare to Ancient Origins?

BREAKthrough (2015) is an expansion in the XY Series that followed Ancient Origins (2015). It tracks 165 cards versus 101 in Ancient Origins, with a top chase of $208.35 against $1,172.00 in its predecessor.

Are BREAKthrough booster packs worth opening?

Pack value in BREAKthrough depends on pull rates and current market prices. Card prices alone do not show what a pack is likely to contain. The highest-priced tracked card is Mewtwo-EX at $208.35. The average tracked card price is $8.52; this is not an expected return per pack.