Yu-Gi-Oh Structure Deck: Realm of the Sea Emperor * The Realm of the Sea Emperor Structure Deck launches an ocean themed Deck for Duelists * Realm of the Sea Emperor is designed to give Duelists a jumping off point to build a competitive Deck * This Structure Deck will introduce 5 brand new cards including an extremely powerful Spell Card that all deep-sea Duelists will want to have in their Deck * Duelists can find additional Sea Serpents in Abyss Rising.