Realm of the Sea Emperor Structure Deck Single Cards

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.