Groudon EX XY42

Pokemon card from XY Black Star Promos · released Oct 12, 2013

~$19.75 Holofoil

as of Oct 30, 2026 · Buy links are affiliate links.

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Groudon EX XY42 XY Black Star Promos Pokemon card

Groudon EX is a Promo Fighting-type Pokemon card, number XY42 in XY Black Star Promos (released Oct 12, 2013), illustrated by Eske Yoshinob. Its TCGplayer market price was ~$19.75 for the holofoil finish on Oct 30, 2026. Between Oct 15 and Oct 30, 2026, its Holofoil TCGplayer market price went from ~$18.98 to ~$19.75, up 4.1%.

Prices by finish

Finish	PriceMarket price	Low	Mid	Buy
Holofoil	~$19.75	~$7.99	~$19.99	Buy Holofoil on TCGplayer (opens in a new tab)Search eBaySearch AmazonCardNexus

TCGplayer market prices per finish, as of Oct 30, 2026. A guide, not an appraisal; condition and grading change real-world value. Buy links are affiliate links.

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Card details

Set	XY Black Star Promos
Number	XY42
Rarity	Promo
Type	Fighting
HP	180
Artist	Eske Yoshinob
Format legality	Expanded
Finishes	Holofoil

What the codes mean

Card numberXY42A Black Star Promo number. Promos are numbered in their own series, with no set total.
Set symbolThe small XY Black Star Promos symbol identifies the set. Cards from before Scarlet & Violet print a symbol instead of a set code.
Regulation markNo regulation mark. Cards before Sword & Shield (2020) have none.
RarityPromo: the Black Star Promo symbol.
Illustrator“Illus. Eske Yoshinob” names the artist who made the art.