Dialga GX (Secret) 138/131 – SM - Forbidden Light (Secret Rare)

Pokémon · SM - Forbidden Light · Secret Rare

Dialga GX (Secret) 138/131 Price

Dialga GX (Secret) (138/131, Secret Rare) from SM - Forbidden Light is worth $75.89 in Near Mint condition on TCGplayer as of October 3, 2026. On Cardmarket, Europe's main marketplace, the Holofoil sells for €73.11.

Near Mint · TCGplayer: $75.89
Near Mint · Cardmarket: €73.11
30-day change: +4.4%
Printings: 1

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Dialga GX (Secret) prices by printing

Near Mint market prices, updated October 4, 2026.

Printing	TCGplayer (USD)	Cardmarket (EUR)
Holofoil	$75.89	€73.11

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: SM - Forbidden Light
Card number: 138/131
Rarity: Secret Rare
Released: May 4, 2018
Illustrator: 5ban Graphics
Stage: Basic
HP: 180
Card type: Metal
Attack: [M] Overclock
Draw cards until you have 6 cards in your hand.
Attack: [2M] Shred (80)
This attack's damage isn't affected by any effects on your opponent's Active Pokémon.
Attack: [2MMM] Timeless GX (150)
Take another turn after this one. (Skip the between turns step.) (You can't use more than 1 GX attack in a game.)
Weakness: Rx2
Resistance: P-20
Retreat cost: 3

Dialga GX (Secret): common questions

How much is Dialga GX (Secret) 138/131 worth?

Dialga GX (Secret) (138/131, Secret Rare) from SM - Forbidden Light is worth $75.89 in Near Mint condition on TCGplayer as of October 3, 2026. On Cardmarket, Europe's main marketplace, the Holofoil sells for €73.11.

What set is Dialga GX (Secret) from?

Dialga GX (Secret) is card 138/131 in SM - Forbidden Light, released May 4, 2018. Its rarity is Secret Rare. Illustrated by 5ban Graphics.

Is Dialga GX (Secret) going up in price?

Over the last 30 days the Near Mint Holofoil price on TCGplayer moved from $72.70 (September 5, 2026) to $75.89 (October 3, 2026), a change of +4.4%. The 30-day low was $72.70 and the high $75.90.

How do I check what my Dialga GX (Secret) 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.