The Ocean

• Fishborg Blaster is Forbidden
• Pot of Greed is Forbidden
• 52 cards first released after HAT's card pool closed (2014-08-13): Abyss Shark, Abyss-steam, Abyss-sting Triaina, Abyssrhine, the Atlantean Spirit, Abysstrite, the Atlantean Spirit, Arionpos, Serpent of the Ghoti, Askaan, the Bicorned Ghoti, Butterfly Fish, Deep Sea Aria, Deep Sea Artisan, Deep Sea Minstrel, Deep Sea Prima Donna, Deep Sea Repetiteur, Deep Sea Sentry, Dominus Impulse, Eanoc, Sentry of the Ghoti, Firestorms Over Atlantis, Fish and Bids, Fishborg Harpooner, Ghoti Chain, Ghoti of the Deep Beyond, Guitar Gurnards Duonigis, Herald of the Abyss, Icejade Ran Aegirine, Ixeep, Omen of the Ghoti, Keaf, Murk of the Ghoti, Lappis Dragon, Lifeless Leaffish, Magellanica, the Deep Sea City, Mermail Abyssalacia, Mermail King - Neptabyss, Mermail Shadow Squad, Moray of Avarice, Mulcharmy Purulia, Neptabyss, the Atlantean Prince, Number 4: Stealth Kragen, Ocean Dragon Lord - Kairyu-Shin, Ocean of Regeneration, Paces, Light of the Ghoti, Poseidra Abyss, the Atlantean Dragon Lord, Poseidra, the Storming Atlantean, Psiics, Moonlight of the Ghoti, Rage of Kairyu-Shin, Sea Stealth Attack, Sea Stealth II, Shif, Fairy of the Ghoti, Snopios, Shade of the Ghoti, Swordsoul Supreme Sovereign - Chengying, The Most Distant, Deepest Depths, Toadally Awesome, Virtue Stream, Zep, Ruby of the Ghoti

Checked against the HAT format Forbidden & Limited list (April 2014) as of 1 April 2014 and its card pool (no card first released after 13 August 2014), with the sizes and copy limits of a Domain deck.

Not checked: the Deck Master's Domain (which monsters it allows).