Reinforcements [1st Edition] #SDY-031
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Reinforcements [1st Edition] #SDY-031 collector guide
About Reinforcements
Reinforcements is a Normal Trap Card, printed as SDY-031 in Starter Deck: Yugi (2002) as a Common. Starter Deck: Yugi was one of the two pre-built decks that launched the English game in 2002, built around the cards Yugi Muto plays in the anime, with Dark Magician at its centre. Ungraded, this printing ranks 87th of the 162 Starter Deck: Yugi cards we track. The top card is Castle Walls at €356.09.
Character and collecting appeal
Its effect centres on changing ATK and DEF.
Version and identification
This guide covers the 1st Edition printing. The words "1st Edition" are printed below the artwork on the left; copies without them are the Unlimited printing and usually sell for less. Check the code printed below the artwork on the right: it should read SDY-031. The code SDY-031, without a language letter, marks the original North American printing. European English copies have an E in the code, such as SDY-E031, and are priced separately. It is the Common version. Commons have a plain name and no foil. Starter Deck: Yugi has 3 other printings of Reinforcements: SDY-031 (€0.71), SDY-E029 (€1.51) and SDY-E029 1st Edition. Each has its own price, so match the code, edition and rarity exactly. It was also printed in Starter Deck: Kaiba, which we track separately.
Price history
Today an ungraded copy of this printing sells for about €2.01, a PSA 9 for €31.21 and a PSA 10 for €37.45. Our monthly prices for it go back to August 2022. Over the last 12 months ungraded copies are down 64%, and down 7% in the last month. Its highest monthly ungraded value was €35.67 in December 2022, 94% above today. PSA 10 copies have moved sideways over the same 12 months. Of the 5 printings of Reinforcements we track, this one ranks 2nd by ungraded value. The most valuable is Starter Deck: Kaiba SDK-038 1st Edition at €2.82. 1st Edition copies sell for about 2.8× the Unlimited printing (€2.01 against €0.71).
Grading and population
A PSA 10 sells for 18.6× the ungraded price and 1.2× 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 December 2022 peak, which some collectors see as room to recover; it comes from the 1st Edition run of an early English set, which will never be printed again; it is the original printing, which reprints rarely replace for collectors; an active market (27 recent completed sales), so it is easy to sell. Against it: falling prices, down 64% in a year. Treat this as background, not a prediction or financial advice.
Before you buy
Expect to pay around €2.01 for a clean ungraded copy; played copies sell for less, and a PSA 9 costs about €31.21. Ask the seller to show the code SDY-031, the "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.
Most popular Starter Deck: Yugi cards
How much is Reinforcements [1st Edition] #SDY-031 (Starter Deck: Yugi) worth?
As of , an ungraded copy of Reinforcements [1st Edition] #SDY-031 from Starter Deck: Yugi sells for about €2.01 (about $2.25), a PSA 9 for about €31.21 (about $35.00) and a PSA 10 for about €37.45 (about $42.00). These values are based on 27 recent completed sales, the latest on 20 Oct 2026. Ungraded values are down 64% over the last 12 months and PSA 10 values are unchanged. A PSA 10 sells for 18.6× the ungraded price.
Prices are market values from completed sales, shown in euros (converted from US dollars) and updated every few hours.
Reinforcements [1st Edition] #SDY-031 FAQ
How much is Reinforcements [1st Edition] #SDY-031 (Starter Deck: Yugi) worth?
Ungraded, Reinforcements [1st Edition] #SDY-031 (Starter Deck: Yugi) is worth about €2.01 (about $2.25). A PSA 9 sells for about €31.21 (about $35.00). A PSA 10 sells for about €37.45 (about $42.00). Based on recent completed sales as of 23 Oct 2026.
What is a PSA 10 Reinforcements [1st Edition] #SDY-031 worth?
A PSA 10 Gem Mint Reinforcements [1st Edition] #SDY-031 (Starter Deck: Yugi) recently sold for about €37.45 (about $42.00), unchanged over the last 12 months. Its highest monthly PSA 10 value was €1,353 in March 2023.
Is Reinforcements [1st Edition] #SDY-031 (Starter Deck: Yugi) worth grading?
A PSA 10 sells for about 18.6× the ungraded price (€37.45 vs €2.01). The gap is small, so grading fees may outweigh the gain for most copies.
Is Reinforcements [1st Edition] #SDY-031 (Starter Deck: Yugi) going up in value?
Ungraded Reinforcements [1st Edition] #SDY-031 values are down 64% over the last 12 months and down 7% over the last month. The highest monthly ungraded value was €35.67 in December 2022.
When was Reinforcements [1st Edition] #SDY-031 (Starter Deck: Yugi) released?
Reinforcements [1st Edition] #SDY-031 was released on March 29, 2002 as part of Starter Deck: Yugi.