Houndoom-EX #21
BREAKthrough · Ultra Rare
Where to pull it
Every ranked product whose packs can contain this exact card, best odds first. Odds assume uniform pull rates within the card's rarity tier — real sets short-print their biggest chases, so read them as a ceiling.
| Product | Market | Per pack | P(≥1) / product |
|---|---|---|---|
 BREAKthrough Booster Box (36 packs) | $3,148.87 | 1 in 72 | 39.6% |
 BREAKthrough Elite Trainer Box (8 packs) | $615.24 | 1 in 72 | 10.6% |
Market price history
No history yet. The chart fills in as the daily price job accumulates snapshots.
How much is Houndoom-EX #21 worth?
Houndoom-EX #21 is a Ultra Rare from the Pokémon TCG set BREAKthrough. Its current raw market value is $5.81, blended from live eBay sold prices and TCGplayer market data.
How rare is Houndoom-EX #21?
You can expect to pull Houndoom-EX roughly 1 in 72 packs — its Ultra Rare slot appears in about 25.0% of packs, shared across 18 cards of that rarity in BREAKthrough. Opening a whole BREAKthrough Booster Box (36 packs) gives you about a 39.6% chance of pulling at least one.
Which BREAKthrough product should you open for it?
Every product in the table above draws from the same BREAKthrough pack pool, so the honest answer is whichever costs least per pack — currently the BREAKthrough Elite Trainer Box (8 packs) at $615.24. Bear in mind that on our numbers nearly every sealed Pokémon TCG product returns less than it costs when opened: buying the single outright is usually cheaper than chasing it.