Pokémon Lost Thunder Set Guide: The Biggest Sun & Moon Set
A complete guide to Pokémon Lost Thunder — chase cards, full arts, secret rares, and why this enormous Sun & Moon set is a ripper favorite.
Pokémon Lost Thunder was the single largest Sun & Moon set — a 2018 release with one of the deepest card lists in modern Pokémon. Its size and variety make it a favorite for set builders and box rippers alike.
Here's the 2026 buyer's guide.
What makes Lost Thunder different
- Massive set size — one of the biggest English sets ever printed.
- Wide GX and full-art roster — lots of variety per box.
- Strong secret-rare ladder — gold and rainbow chases throughout.
The chase cards
Tier 1: The trophies
- Tyranitar GX (rainbow secret rare) — a popular headline chase.
- Gold secret-rare trainers and items — premium pulls.
- Rainbow GX cards — display favorites.
Tier 2: Strong pulls
- Full-art GX cards — multiple options across the set.
- Full-art trainer cards — collector favorites.
Tier 3: Accessible cards
- Holo rares and reverse holos for set builders.
Why Lost Thunder is a ripper favorite
- Pull variety — the giant set keeps box rips interesting.
- Affordable entry — its size kept many singles accessible.
- Set-building appeal — completing it is a long, satisfying project.
Sealed product
Lost Thunder booster boxes are a popular rip thanks to the deep card list, with reasonable long-term sealed appeal.
Grading Lost Thunder
PSA dominates; CGC is competitive. Common condition issues:
- Centering on full arts and rainbows.
- Edge whitening on dark borders.
- Surface scratches on holo finishes.
What to chase in 2026
- A Tyranitar GX rainbow as a centerpiece.
- A full-art trainer as a collector chase.
- A sealed booster box for the rip experience.
How AI pre-grading helps
Full-art and rainbow centering varies. AI pre-grading screens before submission.
CardSense AI supports Lost Thunder with predicted grades, sub-grades, and live PSA / CGC comps.
FAQ
What is the best card in Lost Thunder? The Tyranitar GX rainbow secret rare and gold trainers are the headline chases.
Is Lost Thunder good for set building? Yes — its enormous size makes it one of the most rewarding SM-era set-building projects.
Related guides
The bottom line
Pokémon Lost Thunder is the biggest Sun & Moon set and a ripper favorite. Chase the rainbows and full arts, pre-grade everything, and enjoy the set build.
Last updated: May 6, 2026.
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