Put 1 damage counter on your opponent's Active Pokémon.
Release year for Lost Thunder is 2018. It belongs to the Sun & Moon series.
The checklist contains 240 cards, placing it in a large expansion range. As of 2026, the set is 8 years old and now falls into an established back-catalog period.
Yamask (#99) is one of the Common prints in this expansion.
Yamask is a Lost Thunder card from the 2018 release window. The printed flavor text states: "Each of them carries a mask that used to be its face when it was human.
Sometimes they look at it and cry." Its card type is Pokémon. The rarity label is Common.
Printed HP is 70. Energy typing is Psychic.
This gives collectors a clear identity footprint for the print. It carries a Basic subtype designation.
Yamask (Lost Thunder) is presently valued at about $0.13 in raw condition. The 7-day delta remains near neutral at 0.0%.
It now sits 3.4% above its 30-day average of $0.13. The 90-day window shows a floor near $0.10 and a peak around $0.13 (23% total spread), which maps to moderate-volatility movement.
The listed rarity for this print is Common.
A wider Yamask checklist helps contextualize this specific Yamask print. The current sample spans 6 comparable cards from 5 sets.
Observed alternatives run from $0.04 to $5.28 (13100% spread). The current card sits -87% versus the sampled alternative average of $0.98.
Notable alternatives include Yamask #82 (Surging Sparks) at $0.06, Yamask #62 (Stellar Crown) at $0.04, Yamask #75 (Paradox Rift) at $0.09, and Yamask #122 (White Flare) at $5.28.
Pricing context for collectors: Over the last 7 days, prices have remained stable at 0.0%, indicating a consolidation phase over sudden breakouts. Observed 90-day bounds of $0.10 and $0.13 create a 23% band, matching a moderate-volatility profile.
Current value is 3.4% above its 30-day reference ($0.13). This sample does not include a stable graded benchmark, which means active listings remain the best condition-adjusted reference.
