★Events: NIJISANJI Campaign | Duelist Cup★
★Updates: 12/05 Maintenance | 12/05 Banlist★
★Newly Released Card Packs:
┣ Secret Packs: Atonement's End | Fruits of the Sinful★
┗ Selection Pack: The End of Guilt★
Guardian Slime is a Effect card in Yu-Gi-Oh Master Duel! Read on to see the card effect of Guardian Slime, its rarity, and all the packs used to unlock Guardian Slime!
List of Contents

| Rarity |
|
||
|---|---|---|---|
| Level |
10
|
||
| Types & Attribute | Water, Effect, Aqua | ||
| Attack | 0 | Defense | 0 |
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.
|
|
This card is currently not included in this type of Card Pack in Yu-Gi-Oh! Master Duel. |
|---|
| Card Pack List | |
|---|---|
![]() Crystal Realm Defier |
![]() The Great Olds |
![]() The Ones Who Serve Ra |
|
| Crafting Cost | Disenchanting Cost |
|---|---|
|
|
Basic Finish:
Foil Finish:
Royal Finish:
|
You can craft Guardian Slime using CP-Rs. To do so, go to the Deck Builder screen, search for Guardian Slime, then click on Generate.
How to Craft Cards

You can also get Guardian Slime from the Master Pack. However, we strongly advise against buying from the Master Pack as the odds of pulling Guardian Slime are low.
Best Normal and Secret Packs to Buy
| Deck Lists | |
|---|---|
![]() The Winged Dragon of Ra |
![]() Numeron Egyptian Gods |
| Icejade Ra | |

| Monster Attributes | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Spell | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Traps | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| - | - |
| Toon | Spirit | Union | Gemini |
| Tuner | Flip | Special Summon | - |
Guardian Slime Effect, Rarity, and Related Packs



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