GXバトルブースト (GX Battle Boost): Japanese Pokémon TCG Set Guide (SM4+)

SM4+, GX Battle Boost (GXバトルブースト), was released on 20 October 2017 in Japan as a high-class reprint set. With 114 numbered cards plus secret rares (125 total), this set compiled the best GX cards from the first year of Sun & Moon into a single premium product.

By PulloraX · Published 30 October 2026

Set overview

GX Battle Boost was a High-Class Pack (ハイクラスパック), a special reprint compilation featuring GX Pokémon and key Trainer cards from SM1 through SM4. Every pack guaranteed at least one GX card, making it a popular choice for collectors and players looking to complete their collections. Booster packs contained ten cards each.

Key cards

The set featured 17 different Pokémon-GX with alternate artwork, including fan favourites like Ho-Oh-GX, Tapu Lele-GX, Lunala-GX, Solgaleo-GX, Necrozma-GX, Lycanroc-GX, Darkrai-GX, Sylveon-GX, and Drampa-GX. Ultra Beast GX cards included Pheromosa-GX, Xurkitree-GX, Celesteela-GX, and Guzzlord-GX.

Secret rares (115–125) featured SR and UR versions of select GX cards, including the coveted Lunala-GX UR and Solgaleo-GX UR gold cards. Competitive staples like Choice Band, Guzma, and Acerola were also included.

What is in the box

A Japanese SM4+ booster box contains 10 packs of 10 cards. Each pack guarantees at least one GX card. The set totals 125 cards: 114 numbered plus 11 secret rares.

Browse Japanese Pokémon sealed product or read more in the PulloraX Magazine.