Koumori Dragon #SDK-006

Koumori Dragon #SDK-006 collector guide

About Koumori Dragon

Koumori Dragon is a Normal Monster, with flavour text instead of an effect, printed as SDK-006 in Starter Deck: Kaiba (2002) as a Common. It is a Level 4 DARK Dragon monster with 1,500 ATK and 1,200 DEF. 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 70th of the 110 Starter Deck: Kaiba cards we track. The top card is Blue-Eyes White Dragon at €300.65.

Character and collecting appeal

Dragons are the most collected monster Type in Yu-Gi-Oh!, largely thanks to Blue-Eyes and Red-Eyes. With no effect, its appeal is its artwork, its stats and its place in Starter Deck: Kaiba.

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-006. The code SDK-006, without a language letter, marks the original North American printing. European English copies have an E in the code, such as SDK-E006, and are priced separately. It is the Common version. Commons have a plain name and no foil. Starter Deck: Kaiba has one other printing of Koumori Dragon: SDK-006 1st Edition (€5.44). 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 €0.81, a PSA 9 for €7.13 and a PSA 10 for €68.85. Our monthly prices for it go back to October 2021. Over the last 12 months ungraded copies are down 42%, and down 21% in the last month. Its highest monthly ungraded value was €2.28 in January 2024, 64% above today. PSA 10 copies have moved down 26% over the same 12 months. 1st Edition copies sell for about 6.7× the Unlimited printing (€5.44 against €0.81).

Grading and population

A PSA 10 sells for 85× the ungraded price and 9.7× a PSA 9. That gap is big enough that grading a sharp, well-centred copy can pay for itself. 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 (26 recent completed sales), so it is easy to sell. Against it: falling prices, down 42% in a year. Card prices can fall as well as rise, so this is not financial advice.

Before you buy

Expect to pay around €0.81 for a clean ungraded copy; played copies sell for less, and a PSA 9 costs about €7.13. Ask the seller to show the code SDK-006, 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.