This attack does 20 more damage times the amount of Metal Energy attached to this Pokémon.
Attach any number of Metal Energy cards from your discard pile to this Pokémon. (You can't use more than 1 GX attack in a game.)
Current valuation lens: Weekly drift is minimal (0.0%), indicating a relatively balanced short-term market. Observed 90-day bounds of $2.83 and $3.21 create a 12% band, matching a low-volatility profile.
Current value remains close to its 30-day mean ($3.20). Condition sensitivity is substantial: PSA 10 carries a +2015% premium over raw value.
PSA 9 is currently around $20.23, while PSA 10 is $67.89.
Melmetal-GX (SM Black Star Promos) is presently valued at about $3.21 in raw condition. Week-over-week change is limited (0.0%), indicating short-term stability.
Relative to the last 30 days, value is near baseline at $3.20. The 90-day window shows a floor near $2.83 and a peak around $3.21 (12% total spread), which maps to low-volatility movement.
The listed rarity for this print is Promo.
In 2017, SM Black Star Promos introduced this print of Melmetal-GX. Core profile: Its card type is Pokémon.
The rarity label is Promo. Printed HP is 220.
Energy typing is Metal. This card evolves from Meltan.
Card rules text: Pokémon-GX rule: When your Pokémon-GX is Knocked Out, your opponent takes 2 Prize cards. Notable ability on this print: "Hard Coat".
SM Black Star Promos was released in 2017. SM Black Star Promos is grouped under the Sun & Moon era.
The checklist contains 250 cards, placing it in a large expansion range. As of 2026, the set is 9 years old and now falls into an established back-catalog period.
Melmetal-GX (#SM178) is one of the Promo prints in this expansion.