Play this deck in Master Duel's N/R Festival! It's a strong deck that focuses on sending cards from your deck to the graveyard! Summon Laundry Dragonmaid to mill the top 3 cards of your deck. Special summon Laundry Dragon from your deck with Soldier Dragons's effect. Send a trap from the deck to the graveyard with Paleozoic Marrella's effect.
The Graveyard's Monster Support
Magicolloidal Sol can special summon itself from your hand or graveyard if you special summon a monster with your trap effect, and it can synchro or xyz summon on your opponent's turn by using itself and another monster as material. Dragonmaid Tidying and the Paleozoic cards are traps that can special summon a monster on your opponent's turn and easily trigger Magicolloidal Sol's effects. You can then synchro summon Merry Melffys to return a face-up monster on the field back to the hand with its effect.
When a monster you control is targeted for an effect or an attack, Cutter Shark can tribute that monster to special summon itself from your hand or graveyard, and it can add a water monster, except itself, from your graveyard to your hand during the end of the turn its special summoned. Cutter Shark is sturdy wall that's used to dodge targeting effects and generate advantage for your next turn.
The Azamina Package
The Azamina and Sinful Spoils cards are great to mill! If they're in your hand, then you can discard them with Paleozoic Dinomischus.
Sinful Spoils of Subversion - Snake-Eye transforms monsters into harmless backrow.
Sinful Spoils of Slumber - Morrian can flip a face-up special summoned monster face-down.
Azamina Determination can recycle a Sinful Spoils card in your graveyard to fusion summon Azamina Sol Erysichthon. Azamina Determination can also set a Sinful Spoils card in your graveyard to your field by banishing itself from your graveyard. The best Sinful Spoil to set is Morrian because it can trigger your Paleozoic traps. Fusion summon Sol Erysichthon on your opponent's turn to send a card they control to the graveyard.