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Penguin Knight #MRL-001

Magic Ruler
Release Date September 16, 2002Set Code MRL-001Rarity CommonEdition UnlimitedCard Type Effect MonsterAttribute WATERType AquaLevel 3ATK / DEF 900 / 800
When this card is sent directly from your Deck to the Graveyard by an effect of a card controlled by your opponent, unite your Graveyard cards and your own Deck, shuffle them and form a new Deck.
Ungraded
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PSA 9
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PSA 10
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Penguin Knight #MRL-001 collector guide

History, version, grading and market outlook for this card.

About Penguin Knight

Penguin Knight is an Effect Monster, printed as MRL-001 in Magic Ruler (2002) as a Common. It is a Level 3 WATER Aqua monster with 900 ATK and 800 DEF. Magic Ruler was the third English booster set and brought Pegasus's Toon cards into the game. Magic Cards were later renamed Spell Cards and the set was reprinted as Spell Ruler, so Magic Ruler copies are the original printing. Ungraded, this printing ranks 256th of the 321 Magic Ruler cards we track. The top card is Blue-Eyes Toon Dragon at €223.11.

Character and collecting appeal

Aqua monsters often work with water Field Spells such as Umi.

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 MRL-001. The code MRL-001, without a language letter, marks the original North American printing. European English copies have an E in the code, such as MRL-E001, and are priced separately. It is the Common version. Commons have a plain name and no foil. Magic Ruler has 3 other printings of Penguin Knight: MRL-001 1st Edition (€0.37), MRL-E001 (€2.16) and MRL-E001 1st Edition (€2.30). 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 €0.37, a PSA 9 for €5.35 and a PSA 10 for €37.84. Our monthly prices for it go back to October 2021. Over the last 12 months ungraded copies are down 71%, and up 76% in the last month. Its highest monthly ungraded value was €2.22 in April 2023, 83% above today. PSA 10 copies have moved down 56% over the same 12 months. Of the 4 printings of Penguin Knight we track, this one ranks 3rd by ungraded value. The most valuable is Magic Ruler MRL-E001 1st Edition at €2.30. Unusually, Unlimited copies currently sell for as much as or more than 1st Edition ones (€0.37 against €0.37).

Grading and population

A PSA 10 sells for 102.3× the ungraded price and 7.1× 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 April 2023 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 71% in a year. Card prices can fall as well as rise, so this is not financial advice.

Before you buy

Expect to pay around €0.37 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 MRL-001, 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.

How much is Penguin Knight #MRL-001 (Magic Ruler) worth?

As of , an ungraded copy of Penguin Knight #MRL-001 from Magic Ruler sells for about €0.37 (about $0.41), a PSA 9 for about €5.35 (about $6.00) and a PSA 10 for about €37.84 (about $42.44). These values are based on 25 recent completed sales, the latest on 14 Oct 2026. Ungraded values are down 71% over the last 12 months and PSA 10 values are down 56%. A PSA 10 sells for 102.3× the ungraded price.

Prices are market values from completed sales, shown in euros (converted from US dollars) and updated every few hours.

Penguin Knight #MRL-001 FAQ

How much is Penguin Knight #MRL-001 (Magic Ruler) worth?

Ungraded, Penguin Knight #MRL-001 (Magic Ruler) is worth about €0.37 (about $0.41). A PSA 9 sells for about €5.35 (about $6.00). A PSA 10 sells for about €37.84 (about $42.44). Based on recent completed sales as of 23 Oct 2026.

What is a PSA 10 Penguin Knight #MRL-001 worth?

A PSA 10 Gem Mint Penguin Knight #MRL-001 (Magic Ruler) recently sold for about €37.84 (about $42.44), down 56% over the last 12 months. Its highest monthly PSA 10 value was €106.15 in April 2023.

Is Penguin Knight #MRL-001 (Magic Ruler) worth grading?

A PSA 10 sells for about 102.3× the ungraded price (€37.84 vs €0.37). The gap is small, so grading fees may outweigh the gain for most copies.

Is Penguin Knight #MRL-001 (Magic Ruler) going up in value?

Ungraded Penguin Knight #MRL-001 values are down 71% over the last 12 months and up 76% over the last month. The highest monthly ungraded value was €2.22 in April 2023.

When was Penguin Knight #MRL-001 (Magic Ruler) released?

Penguin Knight #MRL-001 was released on September 16, 2002 as part of Magic Ruler.