Discard all basic Psychic Energy from this Pokémon. This attack does 80 more damage for each card you discarded in this way.
You can use this attack only if the total of both players' remaining Prize cards is 6 or less. Put 6 damage counters on each of your opponent's Pokémon. (You can't use more than 1 GX attack in a game.)
Pricing context for collectors: Weekly drift is minimal (0.0%), indicating a relatively balanced short-term market. Observed 90-day bounds of $6.61 and $7.62 create a 13% band, matching a low-volatility profile.
Relative to the 30-day baseline ($7.46), pricing is near equilibrium. Available graded data shows PSA 9 at $17.00, which is +126% versus raw pricing.
Current market pricing for Ultra Necrozma-GX (SM Black Star Promos) sits near $7.53. Its 7-day movement is largely flat at 0.0%.
Current pricing is broadly aligned with its 30-day average ($7.46). The 90-day window shows a floor near $6.61 and a peak around $7.62 (13% total spread), which maps to low-volatility movement.
This version is categorized as Promo.
Ultra Necrozma-GX is a SM Black Star Promos card from the 2017 release window. Its card type is Pokémon.
The rarity label is Promo. Printed HP is 190.
Energy typing is Dragon. Card subtype classification is Basic, GX, and Ultra Beast.
Card rules text: Pokémon-GX rule: When your Pokémon-GX is Knocked Out, your opponent takes 2 Prize cards. Notable move text references "Photon Geyser" and "Sky-Scorching Light-GX".
SM Black Star Promos was released in 2017. Series classification for this set is Sun & Moon.
With 250 listed cards, this is a large set by modern TCG standards. As of 2026, the set is 9 years old and now falls into an established back-catalog period.
In the SM Black Star Promos checklist, Ultra Necrozma-GX occupies position #SM126 as a Promo card.
Other Ultra printings create a useful comparison set for Ultra Necrozma-GX. This comparison sample includes 4 alternatives across 2 sets.
Observed alternatives run from $7.15 to $94.06 (1216% spread). The current card sits -82% versus the sampled alternative average of $41.05.
Notable alternatives include Ultra Necrozma-GX #78 (Dragon Majesty) at $94.06, Ultra Necrozma-GX #127 (Forbidden Light) at $21.38, Ultra Necrozma-GX #140 (Forbidden Light) at $41.59, and Ultra Necrozma-GX #95 (Forbidden Light) at $7.15.
