Blastoise-GX

SM Black Star Promos · #SM189 · Promo

$21.78US · TCGplayer

$17.92EU · Cardmarket

+18%7-day (EU)

+27%30-day (EU)

PromoRarity

#64 of 251Rank in set

Price detail

Market read: heating up — +18% in 7 days; +27% over 30 days; a steady climb built over the month, not a one-week pop — the kind of move that tends to hold.

TCGplayer (US) (holofoil)

Tier	USD
Low	$15.00
Market	$21.78
Mid	$25.29
High	$9,999

Cardmarket (EU)

Metric	EUR
Trend	€16.59
Avg 1-day	€12.00
Avg 7-day	€14.03
Avg 30-day	€13.03
Low	€2.98

FAQ

How much is Blastoise-GX (SM Black Star Promos #SM189) worth?

As of our 2026-08-07 data, Blastoise-GX from SM Black Star Promos is worth about $21.78 (TCGplayer US market) and around €17.92 (Cardmarket EU). Prices move constantly — check the live links before buying or selling.

Is Blastoise-GX rare?

Its rarity is listed as Promo and it ranks #64 of 251 by value in SM Black Star Promos. Rarity is the printed classification — it does not by itself guarantee value.

What's the most valuable card in SM Black Star Promos?

By current US market price, it's Champions Festival at $490.

Is Blastoise-GX's price going up or down?

On the Cardmarket (EU) trend it's +18% over 7 days, +27% over 30 days. That's an early momentum signal, not a guarantee — collectible prices are volatile and can reverse quickly.

Where can I check Blastoise-GX's live price?

See the current TCGplayer (US) market price here: Blastoise-GX on TCGplayer ↗.