Magic: The Gathering · Unstable · Rare

X #137 Price

X (#137, Rare) from Unstable is worth $0.33 to $2.93 in Near Mint condition on TCGplayer as of October 4, 2026, depending on the printing (Normal to Foil). On Cardmarket, Europe's main marketplace, the Foil sells for €1.03.

Near Mint · TCGplayer: $2.93
Near Mint · Cardmarket: €1.03
30-day change: +12.3%
Printings: 2

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X prices by printing

Near Mint market prices, updated October 4, 2026.

Printing	TCGplayer (USD)	Cardmarket (EUR)
Foil	$2.93	€1.03
Normal	$0.33	€0.08

TCGplayer market price and Cardmarket price for Near Mint English copies. They are two separate markets, so the euro figure is Cardmarket's own price, not a conversion of the dollar one. Source: TCGplayer, Cardmarket.

Card details

Set: Unstable
Card number: 137
Rarity: Rare
Released: December 8, 2017
Illustrator: Dmitry Burmak
Power / toughness: 2/2
Type line: Legendary Creature — Human Spy
Rules text: As long as X is in X's owner's opponent's hand, X's owner may cast X and activate X's abilities. That opponent can't cast X and plays with his or her hand revealed.
UB, T: Put X into target opponent's hand.
3UB: You may play a card in the same hand as X without paying its mana cost.

X: common questions

How much is X #137 worth?

X (#137, Rare) from Unstable is worth $0.33 to $2.93 in Near Mint condition on TCGplayer as of October 4, 2026, depending on the printing (Normal to Foil). On Cardmarket, Europe's main marketplace, the Foil sells for €1.03.

What set is X from?

X is card 137 in Unstable, released December 8, 2017. Its rarity is Rare. Illustrated by Dmitry Burmak.

Is X going up in price?

Over the last 30 days the Near Mint Foil price on TCGplayer moved from $2.61 (September 6, 2026) to $2.93 (October 4, 2026), a change of +12.3%. The 30-day low was $2.21 and the high $2.93.

How do I check what my X is worth?

Scan it with the TCG Vault app on iPhone: it identifies the card from the camera in seconds and shows its current market price and price history, then keeps it in your collection so you can follow its value.