How much is Mewtwo GX 78/73 worth?

About $829 (TCGplayer market price, 2026-10-15). Graded copies sell for more.

What set is Mewtwo GX 78/73 from?

Shining Legends (Sun & Moon), released October 6, 2017.

Is Mewtwo GX the most valuable card in Shining Legends?

Yes, it is the most valuable of the 78 cards in Shining Legends.

Pokémon sets › Shining Legends › Mewtwo GX

Illus. Mitsuhiro Arita · © Pokémon / Nintendo / Creatures / GAME FREAK. Shown for identification.

Mewtwo GX 78/73

Shining Legends · Secret Rare · illustrated by Mitsuhiro Arita

$829TCGplayer market price, 2026-10-15

#1 of 78most valuable in Shining Legends

TCGplayer eBay Graded on eBay

What Mewtwo GX 78 is worth

Mewtwo GX 78/73 sells for about $829 ungraded in near-mint condition. It is the most valuable card in Shining Legends, and alone makes up 51% of what one copy of every card in the set costs. Among all 61 Mewtwo cards, it ranks 4th by price.

Mewtwo GX price by printing

Printing	Price	Source
Holo	$829	TCGplayer market, 2026-10-15

Mewtwo GX card details

Set	Shining Legends (Sun & Moon, SLG)
Number	78/73 (secret rare: numbered above the set total)
Rarity	Secret Rare
Card type	Basic GX Psychic
HP	190
Attacks	Full Burst Psychic · 30× damage Super Absorption Psychic, Colorless · 60 damage Psystrike GX Psychic, Psychic, Psychic · 200 damage
Weakness	Psychic ×2
Retreat cost	2
Illustrator	Mitsuhiro Arita
Released	October 6, 2017
Printings	Normal

How to tell you have this card

Look at the bottom of the card: it should read 78/73 next to the set code SLG, and the rarity is Secret Rare. The illustrator credit reads Mitsuhiro Arita. Not sure which set your card is from? Compare the symbol with our set symbol guide.

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Prices in US dollars: TCGplayer market prices (via pokemontcg.io) where recent, otherwise the Cardmarket trend (via TCGdex) converted at the day's ECB rate. Ungraded, near-mint. Prices change daily; check the live listing before you buy or sell.