|Structure Deck: Realm of the Sea Emperor|
|Number of cards||40|
Structure Deck: Realm of the Sea Emperor
Structure Deck: Realm of the Sea Emperor is a Structure Deck in the Yu-Gi-Oh! Trading Card Game (TCG). It is the twenty-third deck in the TCG's Structure Deck series, following Structure Deck: Samurai Warlords. This deck is the TCG equivalent of Structure Deck: Roar of the Sea Emperor in the OCG.
Each Structure Deck: Realm of the Sea Emperor contains 40 cards in total. The number of card of each rarity are as follows: