GXウルトラシャイニー (GX Ultra Shiny): Japanese Pokémon TCG Set Guide (SM8b)

GXウルトラシャイニー (GX Ultra Shiny) is a high-class pack (ハイクラスパック) in the Sun & Moon Era of the Japanese Pokémon TCG. Released on 2 November 2018, it is one of the most celebrated and sought-after Japanese Pokémon TCG products ever made. The set features shiny (colour-variant) versions of popular GX Pokémon, making it a collector's dream and one of the defining releases of the Sun & Moon generation.

By PulloraX · Published 30 October 2026

Set overview

Set code: SM8b
Japanese name: ハイクラスパック GXウルトラシャイニー
Cards: 150+ total entries (including shiny variants and secret rares)
Release date: 2 November 2018
Era: Sun & Moon
Series type: High-class pack (ハイクラスパック)

GX Ultra Shiny is widely regarded as one of the best Japanese Pokémon TCG products ever released. The set's Shiny GX subset (SSR rarity) features alternate-colour versions of popular GX Pokémon with stunning artwork on a unique gold-bordered template. Every pack guarantees at least one GX card, and the possibility of pulling a Shiny GX makes every opening exciting. The set also includes reprints of the best GX cards from throughout the Sun & Moon era.

Key cards

Shiny GX (SSR): Charizard-GX Shiny is the crown jewel and one of the most valuable modern Pokémon cards. Other SSR highlights include Rayquaza-GX Shiny, Zoroark-GX Shiny, Buzzwole-GX Shiny, Greninja-GX Shiny, and Metagross-GX Shiny. The shiny variants feature alternate-colour Pokémon on a distinctive gold-bordered card template.

GX Reprints: The best GX cards from SM1 through SM8 are reprinted in this set, providing a comprehensive collection of the Sun & Moon era's most impactful cards.

Secret Rares: Gold UR trainer cards, SR Full Art supporters, and the SSR Shiny GX cards form the three tiers of chase cards. The Charizard-GX SSR remains the most valuable card in the set.

What is in the box

A Japanese SM8b GX Ultra Shiny booster box contains 20 packs of 10 cards each. Every pack is guaranteed at least one GX card. The high-class pack format delivers significantly better pull rates than standard sets, with SSR Shiny GX cards appearing at approximately one per box. This premium product is ideal for collectors seeking shiny variants.

Shop this set

• GX Ultra Shiny SM8b Japanese Pokémon Booster Box

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