Tainted Wisdom #MRD-081

Tainted Wisdom #MRD-081 collector guide

About Tainted Wisdom

Tainted Wisdom is an Effect Monster, printed as MRD-081 in Metal Raiders (2002) as a Common. It is a Level 3 DARK Fiend monster with 1,250 ATK and 800 DEF. Metal Raiders was the second English booster set. It added Summoned Skull, Gate Guardian, Mirror Force and Change of Heart, and many of its cards shaped how the early game was played. Ungraded, this printing ranks 389th of the 508 Metal Raiders cards we track. The top card is Gate Guardian at €301.65.

Character and collecting appeal

Fiends are one of the largest Types in the game, home to many of its darker and more unusual designs. Skull Knight mentions Tainted Wisdom in its text, which keeps it relevant.

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 MRD-081. The code MRD-081, without a language letter, marks the original North American printing. European English copies have an E in the code, such as MRD-E081, and are priced separately. It is the Common version. Commons have a plain name and no foil. Metal Raiders has 3 other printings of Tainted Wisdom: MRD-081 1st Edition (€0.97), MRD-E081 (€1.56) and MRD-E081 1st Edition. 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 €0.89, a PSA 9 for €7.13 and a PSA 10 for €71.61. Our monthly prices for it go back to October 2021. Over the last 12 months ungraded copies are down 23%, and up 24% in the last month. Its highest monthly ungraded value was €1.93 in December 2024, 54% above today. PSA 10 copies have moved up 150% over the same 12 months. Of the 3 printings of Tainted Wisdom we track, this one ranks 3rd by ungraded value. The most valuable is Metal Raiders MRD-E081 at €1.56. 1st Edition copies sell for about 1.1× the Unlimited printing (€0.97 against €0.89).

Grading and population

A PSA 10 sells for 80.5× the ungraded price and 10× a PSA 9. That gap is big enough that grading a sharp, well-centred copy can pay for itself. On cards from the early 2000s, the dark brown backs show every scuff and white edge, so top grades are scarce.

Investment potential

In its favour: a price well below its December 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 23% in a year. Treat this as background, not a prediction or financial advice.

Before you buy

Expect to pay around €0.89 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 MRD-081, 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.