Atlantean Mermail Theme Chronicle

I created this deck for sea-themed deck enthusiasts. It’s basically the standard Atlantean Mermail combo, save for a few minor details. Once Poseidra Abyss is sent to the Graveyard, we summon two Level 3 monsters and Deep Sea Diva to then summon Rise. At this point, we have Abyss-Sting in hand and Coelicanth with its effect still available. We activate its effect to summon an Abyss-Spikes (the other one is on board revived by Abysstrite) and a Greethys. We summon Monoceros and use its effect to revive Greethys from the Graveyard. We summon Abyssgaios using Coelicanth and Monoceros. We activate Greethys' effect to summon Deep Sea Diva from the Graveyard (if the opponent doesn't have enough cards in hand, don't summon anything—especially not Prince). Using Greethys and the last Abyss-Spike, summon Deep Sea Prima Donna; use her effect to return the card you banished with Deep Sea Sentinel to the opponent's hand and summon Abyssturge, whose effect lets you add Prince back to your hand. Next, use Abyss-Sting to revive one of the Level 3 monsters from your Graveyard and summon Lancea using that monster and Deep Sea Prima Donna. With Abyssturge and Deep Sea Diva (if you managed to summon it), you can make Coral Dragon. Now, during your opponent's turn, you can summon Trishula and/or Raiho, as well as Poseidra, by discarding Prince via the effect of Abysshrine.

!! Place Rise, Lancea, and Abyssgaios in the zones Neptabyss points to so it can protect them !!