The Inexperienced Spy #SDK-037

The Inexperienced Spy #SDK-037 collector guide

About The Inexperienced Spy

The Inexperienced Spy is a Normal Spell Card, printed as SDK-037 in Starter Deck: Kaiba (2002) as a Common. Starter Deck: Kaiba was one of the two pre-built decks that launched the English game in 2002, built around Seto Kaiba and his Blue-Eyes White Dragon. Ungraded, this printing ranks 110th of the 110 Starter Deck: Kaiba cards we track. The top card is Blue-Eyes White Dragon at €300.65.

Version and identification

This guide covers the Unlimited printing, without the "1st Edition" text below the artwork. 1st Edition copies of the same card have their own, usually higher, prices. Check the code printed below the artwork on the right: it should read SDK-037. The code SDK-037, without a language letter, marks the original North American printing. European English copies have an E in the code, such as SDK-E037, and are priced separately. It is the Common version. Commons have a plain name and no foil. Starter Deck: Kaiba has 2 other printings of The Inexperienced Spy: SDK-037 1st Edition (€1.59) and SDK-E034 (€2.56). Each has its own price, so match the code, edition and rarity exactly.

Price history

Today an ungraded copy of this printing sells for about €0.14, a PSA 9 for €5.35 and a PSA 10 for €36.00. Our monthly prices for it go back to October 2021. Over the last 12 months ungraded copies are down 90%, and down 22% in the last month. Its highest monthly ungraded value was €1.98 in January 2024, 93% above today. PSA 10 copies have moved down 37% over the same 12 months. Of the 3 printings of The Inexperienced Spy we track, this one ranks 3rd by ungraded value. The most valuable is Starter Deck: Kaiba SDK-E034 at €2.56. 1st Edition copies sell for about 11.4× the Unlimited printing (€1.59 against €0.14).

Grading and population

A PSA 10 sells for 257.1× the ungraded price and 6.7× a PSA 9. That gap is small, so grading fees may outweigh the gain unless the card is for your own collection. Early English Yu-Gi-Oh! cards often have off-centre cuts and wear on the dark brown back borders, which is why high grades are hard to reach.

Investment potential

In its favour: a price well below its January 2024 peak, which some collectors see as room to recover; it comes from the first years of the English game, which are no longer printed; an active market (25 recent completed sales), so it is easy to sell. Against it: falling prices, down 90% in a year. Past prices do not guarantee future ones. This is not financial advice.

Before you buy

Expect to pay around €0.14 for a clean ungraded copy; played copies sell for less, and a PSA 9 costs about €5.35. Ask the seller to show the code SDK-037, the missing "1st Edition" text and the Common finish clearly in the photos, as listing titles often mix up printings. Cards from 2002 often show white wear on the back edges and corners, so ask for photos of the back before you buy.

Card details and image from YGOPRODeck. Yu-Gi-Oh! is a trademark of Konami; Search Cards is not affiliated with Konami.