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Card details and today's market value in £ for any printing.

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Guardian Slime

Any printing

£0.22–£0.32

Standard · near mint · converted at the ECB rate of 2026-10-13

Type
Effect Monster
Attribute
WATER
Race
Aqua
Level
10
ATK/DEF
0/0
Archetype
Egyptian God
Source
View on source site ↗
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Market value (£)

Standard

  • Cardmarket, cheapest printing £0.22 0.26 EUR
  • TCGplayer, cheapest printing £0.32 0.43 USD

Yu-Gi-Oh! values are for the cheapest printing — rare printings are worth more.

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🛒 On TCGplayer

the biggest US card marketplace
Standard market $0.43 ≈ £0.32
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Prices in US dollars from TCGplayer's price guide. Most sellers are in the US, so check postage and any import charges to the UK. Affiliate link: we may earn a small commission at no cost to you.

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💷 Selling one?

What you'd keep selling the standard at today's value of £0.27:

eBay (private seller)£0.27
Locally (marketplace apps, card fairs, friends)£0.27
Vinted£0.27
Cardmarket£0.26
A card shop (estimate)£0.11–£0.16

Standard: compare in detail →

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Price history

2026-10-12 £0.25 – £0.272026-10-14
Standard £0.27 +8%

Card text

If you take battle or effect damage: You can Special Summon this card from your hand. During damage calculation, if this card battles an opponent's monster (Quick Effect): You can make this card gain DEF equal to that opponent's monster's ATK during that damage calculation only. If this card is sent from the hand or field to the GY: You can add 1 Spell/Trap from your Deck to your hand that specifically lists the card "The Winged Dragon of Ra" in its text. You can only use each effect of "Guardian Slime" once per turn.

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2 printings