Question 1

How is the Xerneas #31/211 XY Black Star Promos price determined?

Accepted Answer

Every price you see in PokeValue comes from live listings on CardMarket — the largest trading-card marketplace in Europe. For Xerneas #31/211 we pull all the currently active listings and break them down by condition, so you get a separate price for each of the seven grades: Poor, Played, Light Played, Good, Excellent, Near Mint and Mint. Listings are filtered to English copies only and to the exact variant — regular cards never include reverse-holo or 1st-edition listings, and vice versa. Prices refresh regularly, so the values you see reflect the current European market.

Question 2

What is Xerneas #31/211 XY Black Star Promos worth right now?

Accepted Answer

The PokeValue market price for Xerneas #31/211 from XY Black Star Promos is around €3.00 in Good condition. The trend price is €3.76. The value moves with condition — a Near Mint copy is worth significantly more than a Played or Poor one. See the per-condition price breakdown above for exact figures.

Question 3

Why does the price of Xerneas #31/211 XY Black Star Promos vary so much by condition?

Accepted Answer

Condition is the single biggest driver of value on a Pokémon card. Edge whitening, surface scratches, bends and centering issues each step the price down. A Near Mint Xerneas XY Black Star Promos can be worth 2–3× a Good copy, and a graded PSA 10 can be worth several times an ungraded Near Mint. PokeValue prices each condition separately so you know exactly what your copy is worth.

Question 4

Where can I buy Xerneas #31/211 XY Black Star Promos?

Accepted Answer

Most Xerneas #31/211 XY Black Star Promos listings live on CardMarket, where European sellers post copies by condition and variant. You can also find occasional copies on Tradera, eBay and dedicated card shops. Use PokeValue to check the current market price before you buy so you don't overpay.

Question 5

Is Xerneas #31/211 XY Black Star Promos rare?

Accepted Answer

Xerneas #31/211 from XY Black Star Promos is relatively uncommon on the market. At the moment there are around 5 active listings on CardMarket. Over the last 30 days the card has sold on 1 different days. Rarity is driven by set size, how long ago the set was released and the popularity of the Pokémon depicted.

Date	Lang	Source	Price
1mo ago	EN	CardMarket	€5
8d ago		CardMarket	€2

Date	Lang	Source	Price
Active	EN	CardMarket	€4
Active		CardMarket	€4

Xerneas #31 Pokemon XY Black Star Promos

Xerneas 31/211 price – sold and for sale

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Current listings

Market price overview for Xerneas #31 from XY Black Star Promos

Current pricing

Price trend (vs 30-day average)

Demand & supply

Price history (90 days)

Prices by condition

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Frequently Asked Questions

Other printings of Xerneas