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- Guardian Slime
Yu-Gi-Oh! · Magnificent Monsters · #MAMO-EN048 · Ultra Rare
Guardian Slime
Yu-Gi-Oh! card price for Guardian Slime: $0.41 market, from $0.08 at the cheapest listing, 1st Edition printing, updated Oct 19, 2026. Full price history since Sep 3, 2026 below.
Sellers right now
Market price is what a near-mint copy actually sold for. The cheapest listing is what a seller asks today — on thin markets the two differ a lot.
Where to buy
One year
Price story
Guardian Slime is new in our records (since September 2026), with a market price of $0.41 so far. Listings currently start at $0.08; over the last 30 days the market price averaged $0.36.
Printings
The card in play
- Card type
- Effect Monster
- Attribute
- WATER
- Monster type
- Aqua
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.
Other printings of Guardian Slime
1 more · $0.41 – $13.88
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