AI created D/D/D deck

This deck was created by ChatGPT out of boredom. This is all the information it gives for this deck:

This deck focuses on the D/D archetype's ability to summon a variety of powerful boss monsters, with a focus on using Dark Contracts to search for or summon the necessary pieces. The Extra Deck includes a mix of Fusion, Synchro, Xyz, and Link monsters to provide versatility in different situations. Of course, this is just one possible way to construct a D/D deck, and the exact composition may depend on individual player preference and playstyle.

This side deck includes a mix of cards to help the deck adapt to various matchups and situations. The three monsters in the side deck are all versatile options that can help in different scenarios. Ghost Belle & Haunted Mansion can disrupt your opponent's graveyard plays, Artifact Lancea can help shut down decks that rely on banishing, and Dinowrestler Pankratops can help with removal and be a decent body on the field.

The spells in the side deck are focused on helping to clear problematic cards from your opponent's side of the field. Twin Twisters and Cosmic Cyclone can help with backrow removal, while Dark Ruler No More can help bypass opposing monster effects for a turn. Instant Fusion can help with Extra Deck plays or can be used for Link Summoning.

The traps in the side deck provide a mix of defensive and offensive options. Evenly Matched can help you come back from a losing position by clearing your opponent's field, Red Reboot can help get around opposing traps, and Solemn Judgment can provide a powerful counter to any plays that your opponent makes.The main card in a D/D deck is typically considered to be D/D Savant Kepler. Kepler is a key piece in the deck's engine, as it allows you to search out your Dark Contract spells, which are crucial for summoning your D/D boss monsters and generating advantage. Kepler is also a level 1 Tuner monster, which can be useful for Synchro Summoning or Link Summoning.

That being said, the D/D archetype as a whole is designed to work cohesively as a team, with many of the cards supporting each other to create powerful combos and field presence. The deck can generate a lot of advantage and summon a variety of different boss monsters, so it's difficult to pinpoint a single "main card" in the traditional sense. Rather, the strength of a D/D deck comes from its ability to adapt to different situations and playstyles.