Flip 4 coins. This attack does 40 damage times the number of heads.
This Pokémon does 20 damage to itself.
Chesnaught-EX from XY Black Star Promos is currently trading around $4.45. Its 7-day movement is largely flat at 0.0%.
Current value is elevated versus the 30-day mean ($4.34), by 2.5%. Its 90-day trading band runs between $4.14 and $4.59, producing a 10% range and low-volatility behavior.
This version is categorized as Promo.
Market structure summary: We observe a 0.0% shift this week, which points toward price consolidation rather than immediate volatility. With a 10% 90-day spread ($4.14-$4.59), this card currently tracks as low-volatility.
Relative to the 30-day baseline ($4.34), pricing is near equilibrium. Graded comparison currently centers on PSA 9 near $14.00, representing +215% over raw value.
In 2013, XY Black Star Promos introduced this print of Chesnaught-EX. Its card type is Pokémon.
The rarity label is Promo. Printed HP is 180.
Energy typing is Grass. This gives collectors a clear identity footprint for the print.
This print is categorized under the Basic and EX subtype. The card text reads: Pokémon-EX rule: When a Pokémon-EX has been Knocked Out, your opponent takes 2 Prize cards.
Release year for XY Black Star Promos is 2013. XY Black Star Promos is grouped under the XY era.
With 216 listed cards, this is a large set by modern TCG standards. As of 2026, the set is 13 years old and fits a legacy-era profile.
Within this set, Chesnaught-EX is card number XY18 with a Promo designation.