Crystal Wall (bw7-139 Holofoil) is a Trainer printed as an ACE SPEC Pokémon Tool. When attached to Black Kyurem-EX it raises that Pokémon’s maximum HP to 300 and allows you to play any number of Item cards during your turn. Debuted in the Boundaries Crossed expansion.

Identity & printing

Name: Crystal Wall (Holofoil)
Number: 139
Printed number: 139/149
Rarity: Rare ACE
Variant: Holofoil
Language code: EN
Print ID: bw7-139-Holofoil

Type line & stats

Market prices (catalog API)

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Catalog pricing data as of 12 Apr 2026, 09:36

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Supertype: Trainer
Subtypes: Pokémon Tool, ACE SPEC
Types: Unknown

Catalog metadata

National Pokédex: 0
Imported from: Vendor Tools Public API catalog

Rules

Attach a Pokémon Tool to 1 of your Pokémon that doesn't already have a Pokémon Tool attached to it. If this card is attached to Black Kyurem-EX, its maximum HP is 300. You may play as many Item cards as you like during your turn (before your attack). You can't have more than 1 ACE SPEC card in your deck.

Set, artist & references

Artist: 5ban Graphics
Language: English
Set name: Boundaries Crossed
Game name: Pokémon

In play

Abilities, attacks, weakness & resistance

More in this set

Other cards from Boundaries Crossed

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eBay prices

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Description

Crystal Wall (bw7-139 Holofoil) is a Trainer printed as an ACE SPEC Pokémon Tool. When attached to Black Kyurem-EX it raises that Pokémon’s maximum HP to 300 and allows you to play any number of Item cards during your turn. Debuted in the Boundaries Crossed expansion.

Catalog pricing data as of 12 Apr 2026, 09:36