Realm of the Sea Emperor Structure Deck Single Cards

You can Tribute 3 Level 3 or lower WATER monsters; Special Summon this card from your hand or Graveyard. When you do: Return all Spell and Trap Cards on the field to the hand, and if you do, if 3 or more cards are returned to the hand by this effect, all monsters your opponent currently controls lose 300 ATK for each.

All face-up Level 3 or lower Sea Serpent-Type monsters you control can attack your opponent directly. When this card is sent to the Graveyard to activate a WATER monster's effect: Add 1 Sea Serpent-Type monster from your Deck to your hand, except Atlantean Dragoons.

When this card inflicts Battle Damage to your opponent: You can Special Summon 1 Level 4 or lower Sea Serpent-Type Atlantean monster, except Atlantean Marksman, from your Deck. When this card is sent to the Graveyard to activate a WATER monster's effect: Target 1 Set card your opponent controls; destroy that target.

During your Main Phase, you can Normal Summon a Level 4 or lower Sea Serpent-Type monster in addition to your Normal Summon/Set. (You can only gain this effect once per turn.) When this card is sent to the Graveyard to activate a WATER monster's effect: Target 1 face-up card your opponent controls; destroy that target.

The Great Ocean Lord, who reigns over the depths, is served by these lancers. Deep-sea creatures exist in fear of facing the stream of attacks their lances are capable of.

This card gains 800 ATK while you control a face-up Fish, Sea Serpent, or Aqua-Type monster other than this card.

If there is another face-up Fish, Sea Serpent, or Aqua-Type monster on the field: You can Tribute this card to target 1 Spell/Trap Card on the field; destroy that target.

After damage calculation, if this card battles an Effect Monster: Negate the effects of that monster (including in the Graveyard). You must control another face-up WATER monster to activate and resolve this effect. If this card would be destroyed, you can destroy 1 face-up Level 3 or lower WATER monster you control instead.

All Fish-Type, Sea Serpent-Type, and Aqua-Type monsters you control gain 400 ATK.

When this card is Normal Summoned: You can Special Summon 1 Level 3 or lower Sea Serpent-Type monster from your Deck.

Once per turn: You can target 1 face-up Level 3 or lower monster you control; equip that target to this card. (You can only equip 1 monster at a time to this card with this effect.) While equipped to a monster by this effect, this card gains 800 ATK. If this card would be destroyed, you can destroy the monster equipped to it with this effect instead.

You can send 1 face-up Umi you control to the Graveyard to target up to 2 cards your opponent controls; send those targets to the Graveyard.

You can discard this card to the Graveyard; add 1 A Legendary Ocean from your Deck to your hand.

Once per turn: You can discard 1 WATER monster to the Graveyard to target 1 card on the field; return it to the hand.

If this card is destroyed by battle: Send 2 WATER monsters from your Deck to the Graveyard.

When this card is flipped face-up: Target 1 face-up monster on the field; destroy that target.

All face-up WATER monsters you control gain 200 ATK. When this card is flipped face-up: Target 1 card your opponent controls; return that target to the hand.

FLIP: You can target up to 2 monsters on the field; return those targets to the hand.

At the end of the Battle Phase, if this card was destroyed by battle and sent to the Graveyard: Choose 1 Monster Card from your Deck and place it on top of your Deck.

This card cannot be destroyed by battle with a Level 4 or higher monster.

When this card is destroyed by battle and sent to the Graveyard: You can Special Summon 1 WATER monster with 1500 or less ATK from your Deck in face-up Attack Position.

When a face-up Fish, Sea Serpent, or Aqua-Type monster you control is targeted for an attack: You can banish this card from your Graveyard to target the attacking monster; negate the attack, and that target loses 500 ATK until your next End Phase. The effect of Friller Rabca can only be activated once per turn.

Target 3 Level 3 or lower Sea Serpent-Type monsters in your Graveyard; Special Summon all 3 of them. You cannot Special Summon other monster(s) during the turn you activate this card.

This card's name is treated as Umi. Reduce the Level of all WATER monsters in both player's hands and on the field by 1. All WATER monsters gain 200 ATK and DEF.

Add 1 Field Spell Card from your Deck to your hand.

Once per turn: You can Special Summon 1 Level 4 or lower WATER monster from your hand. You must control no monsters to activate and to resolve this effect.

Target 1 face-up Fish, Sea Serpent, or Aqua-Type monster you control; it gains 1000 ATK.

Target 1 Level 3 or lower Fish, Sea Serpent, or Aqua-Type monster in your Graveyard; Special Summon it in face-up Defense Position.

Shuffle 2 WATER monsters from your hand into the Deck, then draw 3 cards.

Target 2 WATER monsters with 1500 or less ATK in your Graveyard; add those targets to your hand.

Destroy all monsters on the field.

Destroy all face-up WATER monsters you control; then you can Special Summon WATER monsters from your hand, up to the number of monsters destroyed by this effect.

Until the End Phase, face-up Level 3 or lower WATER monsters you control cannot be destroyed by battle or by card effects.

While this card is on the field, this card's name becomes Umi. Once per turn, during either player's turn: You can target 1 face-up Level 4 or lower Fish-Type, Sea Serpent-Type or Aqua-Type monster you control; banish that target. During your End Phase: Special Summon the monster(s) banished by this effect.

Activate only while Umi is on the field. As long as Umi remains face-up on the field, you take no damage from attacking monsters. When Umi is removed from the field, destroy this card.

When a monster(s) is Summoned: Destroy all monsters on the field.

Tribute 1 WATER monster; look at your opponent's hand, then send 1 card from their hand to the Graveyard.

Level 4 or higher monsters cannot attack.

When an opponent's monster declares an attack: Target the attacking monster; negate that target's attack, and if you control any face-up Fish, Sea Serpent, or Aqua-Type monsters, inflict 800 damage to your opponent for each of those monsters.