The Tribe of the Abyssal Waters

The people of "Mermail" are highly skilled fighters that live under the sea.

Their origins were hidden in their long journey of searching for a safe haven.

The Tribe of the Abyssal Waters is a Solo Mode Gate in Yu-Gi-Oh! Master Duel and focuses on the Mermail archetype.

Like most Gates in Solo Mode, each Duel can be played with either the player's own Deck or a provided Loaner Deck fitting the theme of the Gate, with separate rewards for each. Completing this gate for the first time unlocks the "Forgotten City Dwellers" Secret Pack for 24 hours.

Chapter 1: Scenario

Main article: Master Duel card storylines § The Tribe of the Abyssal Waters

• Reward: 150

Chapter 2: Practice

Learn the ins and outs of "Mermail" Decks.

• Reward: 150

Chapter 3: Duel 1

If "Mermail Abysslinde" on the opponent's field is destroyed in battle or by an effect, you may back yourself into a corner by suddenly letting a Level 7 "Mermail Abyssbalaen" be Special Summoned from the Deck. Even if the number of cards in the opponent's hand or on their field is small, you must not let your guard down.

The opponent will often combine with "Umiiruka" to boost to 2000 ATK or more, even if the monster is Level 4 or lower. Try to ensure that your main monsters have high ATK so that you don't get overpowered.

• Reward (Loaner): "Spined Gillman" x3
• Reward (My Deck): "Lost Blue Breaker" x3

Loaner Deck

High-Level "Mermail" monsters such as "Mermail Abyssmegalo" can unleash additional effects while Special Summoning themselves by discarding a certain number of WATER monsters from your hand to the Graveyard. The effect is powerful but uses a lot of cards in your hand, so be sure to select and discard monsters that activate effects when sent to the Graveyard, such as "Mermail Abyssgunde," to leave room to further your strategy.

Peace-Seeking Aquatic Folk

Main Deck Monster Cards (26) Effect Monsters Mermail Abysslinde x3 Mermail Abyssgunde x3 Mermail Abysshilde x2 Mermail Abyssdine x2 Mermail Abyssocea Mermail Abyssnerei Mermail Abysspike x3 Mermail Abysslung x2 Mermail Abyssmander Mermail Abyssnose x2 Mermail Abyssmegalo x2 Mermail Abyssleed Mermail Abyssteus x3 Spell Cards (10) Normal Spells Salvage x2 Moray of Greed x2 Surface x2 Equip Spells Abyss-scale of the Kraken Abyss-scale of Cetus Abyss-scale of the Mizuchi Field Spells Lemuria, the Forgotten City Trap Cards (4) Normal Traps Abyss-squall Abyss-strom Abyss-scorn Continuous Traps Abyss-sphere Extra Deck (15) Xyz Monsters Number 17: Leviathan Dragon Mermail Abysstrite x2 Number 47: Nightmare Shark Bahamut Shark Full Armored Black Ray Lancer Number 37: Hope Woven Dragon Spider Shark Number 4: Stealth Kragen Stealth Kragen Spawn x2 Mermail Abyssgaios x2 Link Monsters Mermail Abyssalacia x3

Opponent's Deck

Aim to deploy Level 3 monsters centered around "Mermail" monsters to Xyz Summon Rank 3 Xyz Monsters. "Mermail Abysstrite" and "Shark Caesar" are powerful, but they require 3 monsters as Xyz Material. When a Fish-Type, Sea Serpent-Type, or Aqua-Type monster is Normal or Special Summoned to your side of the field, you can Special Summon "Shark Stickers" from your hand, so make sure to use it wisely.

Vast World of Water

Main Deck Monster Cards (30) Effect Monsters Big Jaws x3 Shark Stickers x3 Mermail Abysslinde x3 Mermail Abyssgunde Mermail Abysshilde x3 Mermail Abyssdine Mermail Abyssocea x3 Mermail Abyssnerei Mermail Abysspike x3 Mermail Abyssmander x3 Mermail Abyssnose x3 Mermail Abyssbalaen x3 Spell Cards (8) Normal Spells Fish and Swaps x3 Field Spells Umiiruka x2 Continuous Spells Water Hazard x3 Trap Cards (2) Normal Traps Aegis of the Ocean Dragon Lord Abyss-squall Extra Deck (15) Xyz Monsters Submersible Carrier Aero Shark x3 Mermail Abysstrite x3 Shark Caesar x2 Number 32: Shark Drake x2 Mermail Abyssgaios x2 Link Monsters Mermail Abyssalacia x3

Chapter 4.1: Locked

You must use 500 to unlock this chapter.

Chapter 4.2: Duel 2

The opponent is using a Deck that utilizes Fish-Type monsters to call forth powerful Xyz Monsters.

In particular, "Number 101: Silent Honor ARK" has a powerful effect that turns Attack Position monsters Special Summoned on your field into Xyz Material, so even if you Special Summon monsters with high ATK first, they may be dealt with by the opponent. Sometimes it is effective to wait and see how your opponent will set up before deploying your monsters.

• Reward (Loaner): Protector ("Mermail Abyssmegalo")
• Reward (My Deck): 2

Loaner Deck

Connecting Link Summons from 1 Level 4 or lower "Marincess" monster to "Marincess Blue Slug" and then "Marincess Coral Anemone" is a powerful tactic. It is also important to note that the effect of "Marincess Coral Anemone" can include "Mermail Abysshilde" and others as targets to be Special Summoned. Take advantage of the coordination among WATER monsters to create a powerful battle formation.

Collaboration of Maidens

Main Deck Monster Cards (30) Effect Monsters Marincess Mandarin Mermail Abyssgunde x3 Mermail Abysshilde x3 Mermail Abyssdine Mermail Abyssnerei Marincess Sea Horse x3 Mermail Abyssturge x3 Mermail Abysspike x3 Mermail Abysslung x2 Marincess Blue Tang x3 Marincess Pascalus x3 Mermail Abyssmegalo Mermail Abyssteus x3 Spell Cards (6) Normal Spells Monster Reborn Foolish Burial Pot of Avarice Equip Spells Abyss-scale of the Kraken Field Spells Marincess Battle Ocean x2 Trap Cards (4) Normal Traps Abyss-scorn Marincess Wave x2 Continuous Traps Abyss-sphere Extra Deck (15) Xyz Monsters Mermail Abysstrite x2 Mermail Abyssgaios Link Monsters Marincess Blue Slug x2 Marincess Sea Angel x2 Mermail Abyssalacia x3 Marincess Coral Anemone x2 Marincess Crystal Heart Marincess Marbled Rock Marincess Great Bubble Reef

Opponent's Deck

A Deck centered around "Mermail" monsters, deploying Level 4 Fish-Type monsters and aiming for Xyz Summons. By utilizing "Lantern Shark" and "Buzzsaw Shark" as Xyz Materials, you can attempt not only Rank 4, but also Rank 3 and Rank 5 Xyz Summons. The key to victory is choosing an Xyz Monster that can respond to each situation.

Sharpened Fangtooth

Main Deck Monster Cards (32) Effect Monsters Mermail Abysslinde x3 Mermail Abyssgunde x3 Mermail Abyssdine Mermail Abyssnerei x3 Hammer Shark x2 Mermail Abysspike x3 Mermail Abysslung x2 Mermail Abyssmander Xyz Remora x2 Double Fin Shark White Stingray x2 Lantern Shark x3 Buzzsaw Shark x3 Mermail Abyssteus x3 Spell Cards (4) Normal Spells Salvage Surface Rank-Up-Magic Barian's Force Rank-Up-Magic - The Seventh One Trap Cards (4) Normal Traps Abyss-squall Torrential Reborn x2 Continuous Traps Abyss-sphere Extra Deck (15) Xyz Monsters Number 17: Leviathan Dragon Submersible Carrier Aero Shark Black Ray Lancer Mermail Abysstrite Number 32: Shark Drake Number C32: Shark Drake Veiss Full Armored Black Ray Lancer Number 101: Silent Honor ARK x2 Number 73: Abyss Splash Number C101: Silent Honor DARK Number C73: Abyss Supra Splash Mermail Abyssgaios Link Monsters Mermail Abyssalacia x2

Chapter 4.3: Duel 3

The opponent will make moves to gain control of your monster with the effect of their "Graydle" monster.

Since "Graydle Alligator" corresponds to battle or Spell Card effects, "Graydle Cobra" corresponds to battle or Trap Card effects, and "Graydle Eagle" corresponds to battle or monster effects, let's consider ways other than destroying the card to prevent its effects from being activated.

Effects such as that of "Brionac, Dragon of the Ice Barrier" that returns cards to hand, and "Trishula, Dragon of the Ice Barrier" that banishes cards, are examples of how to deal with "Graydle" monsters.

• Reward (Loaner): Icon ("Mermail Abysstrite")
• Reward (My Deck): 200

Loaner Deck

A Deck that combines "Mermail" and "Penguin" monsters. "Mermail Abyssalacia" can support linked monsters and WATER monsters in the Graveyard, and the effect of "Royal Penguins Garden" can be used to activate the effects of "Mermail Abyssgunde" and other monsters discarded from the hand. Take advantage of both effects to Special Summon powerful Synchro and Xyz Monsters.

Encounter of Penguins & Aquatic Folk

Main Deck Monster Cards (29) Effect Monsters Puny Penguin Penguin Soldier x3 Mermail Abysslinde Mermail Abyssgunde x3 Mermail Abysshilde x2 Mermail Abyssdine x3 Nopenguin x2 Penguin Ninja Penguin Cleric Mermail Abysslung x3 Mermail Abyssnose x2 The Great Emperor Penguin x3 Penguin Squire x3 Mermail Abyssmegalo Spell Cards (8) Normal Spells Monster Reborn Moray of Greed x3 Equip Spells Abyss-scale of the Kraken Continuous Spells Royal Penguins Garden x3 Trap Cards (3) Normal Traps Abyss-scorn x2 Continuous Traps Abyss-sphere Extra Deck (15) Synchro Monsters Brionac, Dragon of the Ice Barrier Dewloren, Tiger King of the Ice Barrier x2 White Aura Dolphin Penguin Brave x3 White Aura Monoceros White Aura Whale Trishula, Dragon of the Ice Barrier Xyz Monsters Mermail Abysstrite x2 Link Monsters Mermail Abyssalacia x3

Opponent's Deck

A Deck that combines "Mermail" and "Graydle" monsters. If "Graydle Eagle" in your Monster Zone is destroyed in battle or by a monster's effect, it becomes an Equip Card equipped to your opponent's monster and you can activate its effect to gain control of it. This effect also works well with the effect of "Mermail Abyssnerei" in your hand, so take control of your opponent's monsters and take control of the Duel.

Migratory Aquatic Folk

Main Deck Monster Cards (28) Effect Monsters Graydle Slime Jr. x3 Mermail Abysslinde x3 Mermail Abyssgunde x2 Mermail Abysshilde x2 Graydle Alligator x2 Graydle Cobra x2 Graydle Eagle x3 Mermail Abyssnerei x3 Mermail Abyssturge x3 Mermail Abyssmander x3 Mermail Abyssteus x2 Spell Cards (7) Normal Spells Salvage x2 Surface x3 Continuous Spells Graydle Impact x2 Trap Cards (5) Normal Traps Graydle Split x3 Continuous Traps Abyss-sphere Graydle Parasite Extra Deck (15) Synchro Monsters Sea Dragon Lord Gishilnodon x2 Coral Dragon x2 White Aura Dolphin White Aura Monoceros Graydle Dragon x2 White Aura Whale Xyz Monsters Mermail Abysstrite x2 Mermail Abyssgaios Link Monsters Mistar Boy Mermail Abyssalacia x2

Chapter 5: Goal

This chapter serves as a Scenario.

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