Lost Thunder Set Guide

Overview

Lost Thunder is the eighth Sun & Moon expansion: 214 cards up to the printed total and 22 secret rares above it (215 to 236).

Many of its Pokémon return to Johto, Lugia-GX, Suicune-GX and Tyranitar-GX among them, and its Supporters include Professor Elm's Lecture, Whitney and Kahili. Its seven Prism Star cards include three Stadiums, Heat Factory, Life Forest and Thunder Mountain. The two Unown on the Expanded banned list are both from this set.

Cards and rarities

Lost Thunder has 236 cards. Every card shows its number over the printed total along the bottom, as in "1/214", next to the set code LOT.

The printed total is 214, so the 22 cards from 215 to 236 are secret rares. The catalog also files four more cards under this set with a letter after the number: Electropower (172a), Net Ball (187a), Professor Elm's Lecture (188a) and Sightseer (189a). Each is an alternate printing outside the numbered set, so they aren't counted here. Set completion in TurnZero HQ counts a set against its printed total and keeps the secret rares apart, so finishing the main set and chasing the cards above it read as two separate goals. How set completion works →

Headline Pokémon

Pokémon-GX give up two Prize cards when Knocked Out, and each has a GX attack; you can use only one GX attack in a game. Three of this set's:

Lugia-GX

Lost Thunder #159

190 HP. Pelagic Blade does 170; Psychic does 30 plus 30 for each Energy on your opponent's Active Pokémon.

Mimikyu-GX

Lost Thunder #149

170 HP. Perplex Confuses your opponent's Active Pokémon; Let's Snuggle & Fall does 10 plus 30 for each of its damage counters.

Shuckle-GX

Lost Thunder #17

170 HP. Protective Shell: prevent all damage done to it by attacks from Pokémon with 2 or fewer Energy attached.

Trainers worth knowing

Two Supporters, both also printed as full arts:

Professor Elm's Lecture

Lost Thunder #188

Supporter. Search your deck for up to 3 Pokémon with 60 HP or less and put them into your hand.

Whitney

Lost Thunder #193

Supporter. Draw a card, then draw 2 more for each other Whitney in your discard pile.

The chase card: Lugia-GX

Lugia-GX

Lost Thunder #227

Rarity Rare Rainbow

Card number 227/214

Market price, October 22, 2026 $370.07

Illustrator PLANETA Igarashi

Lost Thunder's chase card is Lugia-GX, numbered 227/214, a Rare Rainbow, illustrated by PLANETA Igarashi, at $370.07 on October 22, 2026.

The Rare Rainbow Mimikyu-GX (226/214) was second at $311.65 and the Rare Ultra Professor Elm's Lecture (213/214) third at $186.65.

Lugia-GX is printed three times in Lost Thunder. The Rare Holo GX (159/214) was $35.91. The Rare Ultra (207/214) was $125.64.

Every Lugia-GX in Lost Thunder

Only the exact version is worth its price. The number at the bottom of the card and the rarity symbol beside it tell you which one you pulled. Reading the number and rarity symbol →

Chase cards and prices

The rainbow Lugia-GX and Mimikyu-GX lead, with the full-art Professor Elm's Lecture third.

These are each card's headline TCGplayer market price on October 22, 2026. Prices can move a long way, most of all in a set's first months, so treat them as a snapshot. Each card's page shows today's price for every variant and its 90-day chart. How Pokémon card prices work →

What a complete set costs

One copy of every card in Lost Thunder, bought as singles, cost $2,960.46 on October 22, 2026. That is the sixth most expensive of the sixteen sets in the Sun & Moon series.

The three most valuable cards, Lugia-GX, Mimikyu-GX and Professor Elm's Lecture, come to $868.37, or 29% of the total. Without them the set costs $2,092.09. Of the 232 cards, 147 were under $2.00, together $79.81; the other 85 add up to $2,880.65.

Four cards had no TCGplayer price on file and aren't counted: Fairy Charm Grass, Fairy Charm Psychic, Fairy Charm Fighting and Fairy Charm Dragon.

Left out: four alternate printings the catalog files under this set with a letter after the number, Electropower (172a), Net Ball (187a), Professor Elm's Lecture (188a) and Sightseer (189a). They aren't part of the numbered 236.

Each card is counted at its cheapest priced variant, a Normal copy rather than a Reverse Holofoil where both exist, at its TCGplayer market price. This is what it costs to buy the set as singles. It is not what opening packs returns, and not what a complete set would sell for, which after fees and the many cards worth cents would be noticeably less.

Playing it

No Lost Thunder card carries a regulation mark, so none is Standard-legal as printed. Standard has allowed only the H, I and J marks since April 10, 2026. Lost Thunder is legal in Expanded, which takes every set from Black & White on, except for Unown (90/214 and 91/214), on the Expanded banned list.

A reprint with a legal mark makes older printings of the same card legal again, so check a card's name before you rule it out.

Standard, Expanded and deck building rules →

Frequently Asked Questions