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Which box to open?
The « XY Black Star Promos » expansion is not in our Amazon catalog yet — closest alternative boxes (Mega Evolution, Prismatic Evolutions, Chaos Rising).
Card details
xyp
Pokémon · Basic
Rock Smash
Flip a coin. If heads, this attack does 20 more damage.
Break Ground
This attack does 10 damage to each of your Benched Pokémon. (Don't apply Weakness and Resistance for Benched Pokémon.)
This legendary Pokémon is said to represent the land. It went to sleep after dueling Kyogre.
Other cards from the same expansion
Card data: Pokémon TCG API (community) · Publisher context: The Pokémon Company.
To pull Groudon (Promo, XY Black Star Promos), the modeled expectancy is ≈1/470 per booster — about 0.019× / box on a typical ETB-sized box.
Best catalog value: Pokemon TCG: Sealed 3-Booster Pack Lot | 30 Cards, Random Rare, Holo, V, VMAX, VSTAR Odds (9 packs) — roughly 0.019× expected copies of this card per product.
Per booster
≈1/470
Expected copies (rateTCG model)
Per box
0.019×
On a 9-pack product
Same rarity pool
216
Promo
$23.69
$2.63/pack
$84.95
$3.40/pack
$59.99
$6.67/pack
$25.99
$8.66/pack
$26.96
$8.99/pack
$26.99
$9.00/pack
$89.93
$9.99/pack
$89.93
$9.99/pack
$89.93
$9.99/pack
$89.93
$9.99/pack
$89.93
$9.99/pack
$95.30
$10.59/pack
$99.75
$11.08/pack
$112.99
$12.55/pack
$178.87
$16.26/pack
$146.88
$16.32/pack
$154.34
$17.15/pack
$324.42
$18.02/pack
$169.49
$18.83/pack
$37.95
$18.98/pack
$174.88
$19.43/pack
$194.99
$19.50/pack
$182.99
$20.33/pack
$195.99
$21.78/pack
$197.00
$21.89/pack
$199.00
$22.11/pack
$214.99
$23.89/pack
$299.90
$19.99/pack
$722.87
$80.32/pack
$214.99
$23.89/pack
$26.33
$26.33/pack
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