Lost Thunder PSA 10 Guide
Set History & Release Context
Lost Thunder (Japanese: 超爆インパクト Super-Burst Impact) is the eighth main expansion of the Sun & Moon Series, released in English on November 2, 2018 and in Japan on September 7, 2018. The English print is the largest single Sun & Moon expansion at 214 cards in the master set (236 including the secret rare slot range), built by combining the smaller Japanese SM8 set with cards held back from prior subsets. Bulbapedia accessed 2026-05-09.
The set theme is "Ancient Power Echoing from the Mountaintops," leaning heavily on Johto-region Pokémon and Generation II legendaries. It introduced the Prism Star (♢) mechanic prominently across multiple cards and was the launch vehicle for Zeraora-GX, the Mythical Pokémon distributed alongside the Lost Thunder expansion cycle. Bulbapedia accessed 2026-05-09.
Lost Thunder PSA 10 Cards
1 cards
Top Chase Cards Explained
The headline chase in Lost Thunder is Lugia-GX, including its full-art SR and rainbow-rare HR variants, which became iconic for the set. Tyranitar-GX (full art and rainbow), Blacephalon-GX, and the Zeraora-GX promo line round out the GX chases. Among Prism Star (♢) cards, Celebi ♢ and Ditto ♢ are the most collected, while Sceptile-GX, Magcargo-GX, Virizion-GX, Suicune-GX, Sigilyph-GX, and Shuckle-GX provide additional GX pulls.
Gold-rare trainer cards from this set, including Cynthia (full art and gold) and Judge, also carry collector demand because the set was a competitive staple during the 2018-2019 Standard format. Bulbapedia accessed 2026-05-09.
Investment Analysis
Lost Thunder's investment angle is anchored on three verifiable factors: it is the largest English Sun & Moon expansion by card count, it housed multiple format-defining trainers (Cynthia, Judge), and its chase Lugia-GX SR/HR is one of the most recognized SM-era cards. The Sun & Moon block as a whole has been out of print for over six years as of 2026, and sealed English booster boxes have become progressively harder to source through Hong Kong distributors.
Frequently Asked Questions
When was Lost Thunder released?
Lost Thunder was released in English on November 2, 2018, and in Japan as Super-Burst Impact (超爆インパクト) on September 7, 2018.
How many cards are in Lost Thunder?
The English Lost Thunder master set contains 214 cards, with the full secret-rare numbering reaching 236. The Japanese SM8 set has 111 cards. Bulbapedia accessed 2026-05-09.
What are the chase cards in Lost Thunder?
Lugia-GX (rainbow rare), Tyranitar-GX (rainbow rare), Blacephalon-GX, Zeraora-GX, the Prism Star Celebi ♢ and Ditto ♢, and gold trainer Cynthia.
Is Lost Thunder considered a good set for collectors?
Yes. It is the largest Sun & Moon English expansion, contains multiple format-defining trainers, and its Lugia-GX SR/HR is among the most recognizable SM-era chases.
What is the Japanese name for Lost Thunder?
超爆インパクト (Chōbaku Impact / Super-Burst Impact). Lost Thunder is the English-only name; the English set merges content from Super-Burst Impact and earlier Japanese subsets.
Did Lost Thunder introduce any new mechanics?
It was a major vehicle for the Prism Star (♢) mechanic, with multiple Prism Star cards including Celebi ♢ and Ditto ♢ debuting or appearing prominently in the set.