★Events: NIJISANJI Campaign | Duelist Cup★
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★Newly Released Card Packs:
┣ Secret Packs: Atonement's End | Fruits of the Sinful★
┗ Selection Pack: The End of Guilt★
Mermail Shadow Squad is a Effect Monster card in Yu-Gi-Oh Master Duel! Read on to see its effects, rarity, and all the packs needed to unlock it!
List of Contents

| Rarity |
|
||
|---|---|---|---|
| Level |
3
|
||
| Types & Attribute | Water, Effect, Sea Serpent | ||
| Attack | 0 | Defense | 1900 |
(This card is always treated as an “Atlantean” card.)
You can discard 1 card to the GY; WATER monsters you currently control become Level 7 until the end of this turn. If this card is sent to the GY to activate a WATER monster's effect: Special Summon 1 Level 4 or lower “Atlantean” or “Mermail” monster from your Deck, except “Mermail Shadow Squad”, also you cannot Special Summon from the Extra Deck for the rest of this turn, except WATER monsters. You can only use each effect of “Mermail Shadow Squad” once per turn.
| Card Pack List | |
|---|---|
![]() Wrath of the Tyrants |
|
| Card Pack List | |
|---|---|
![]() Forgotten City Dwellers |
|
| Crafting Cost | Disenchanting Cost |
|---|---|
|
|
Basic Finish:
Foil Finish:
Royal Finish:
|
You can craft Mermail Shadow Squad using CP-URs. To do so, go to the Deck Builder screen, search for Mermail Shadow Squad, then click on Generate.
How to Craft Cards

You can also get Mermail Shadow Squad from the Master Pack. However, we strongly advise against buying from the Master Pack as the odds of pulling Mermail Shadow Squad are low.
Best Normal and Secret Packs to Buy
| Deck Lists | |
|---|---|
![]() Atlantean Mermail |
Luka's Atlantean Mermail |

| Monster Attributes | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Spell | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Traps | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| - | - |
| Toon | Spirit | Union | Gemini |
| Tuner | Flip | Special Summon | - |
Mermail Shadow Squad Effect, Rarity, and Packs



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