Changes

| sets = * [[Battle of Chaos]]* [[Age of Overlord]]

 "Ogdoadic" is a [[Deck]] with a [https://ygoprodeck.com/understanding-deck-types-in-yu-gi-oh/#Midrange midrange]/control-oriented approach that revolves around sending their monsters to the [[Graveyard]] and [[Special Summon]]ing them afterwards. They are organized in pairs of [[DARK]] and [[LIGHT]] monsters with the same [[Level]] that and most of them have similarly-designed effects:* The "Remnant" pair "[[Nunu, the Ogdoadic Remnant|Nunu]]"/"[[Nauya, the Ogdoadic Remnant|Nauya]]" are the starters of the Deck, each one having a self-discarding effect that sends an "Ogdoadic" a [[Reptile]] monster of the opposite [[Attribute]] from the Deck to the Graveyard, while also filling the Graveyard for effects like those of "[[Ogdoadic Water Lily]]", "[[Ogdoadic Serpent Strike]]" and/or "[[Ogdoadic Calling]]" in the process. They are also extenders since "Nunu" can Special Summon itself, so it can be used for an [[Xyz Summon|Xyz]]/[[Link Summon]] or as fodder for a [[Tribute]], and "Nauya" [[search]]es searches a [[Spell]]/[[Trap Card]] upon being Summoned.* The first effect of each "Boundless" "[[Zohah, the Ogdoadic Boundless|Zohah]]" and "[[Flogos, the Ogdoadic Boundless|Flogos]]" synergyzes with "Aron" and "Amunessia", respectively. They can manipulate the opponent's cards by forcibly making them [[draw a card]], [[send]] cards from their [[hand]] or [[field]] to the Graveyard, as well as Special Summon a monster from their Graveyard to their field, which can trigger the effects of those monsters. They can [[add]] themselves back to the hand, which can be used to reset their effects and/or manipulate the Graveyard.

* The aforementioned "royal" couple "[[Aron, the Ogdoadic King|Aron]]" and "[[Amunessia, the Ogdoadic Queen|Amunessia]]" requires 2 Tributes each to Special Summon themselves and are the lynchpin of the Deck's control strategy, with effects that penalize the opponent for Special Summoning from the Graveyard or adding a card to their hand, which can be combined with the effects of the previous two pairs in order to disrupt the opponent's strategy by sniping cards they control or have in their hand; they also interact with each other, with the second effect of one triggering the third effect of the other, and were designed to stay on the field as long as possible so their effects can ensure not only a consistent, steadfast control of the game state, but also a continuous supply of LIGHT/DARK [[Reptile]] monsters from the Deck and Graveyard.* "[[Ogdoabyss, the Ogdoadic Overlord|Ogdoabyss]]" and "[[Nephilabyss, the Ogdoadic Overlord|Nefilabyss]]" can be considered , the Deck's boss monster"Overlords", as it has have the highest Level , ATK ("Ogdoabyss") and ATK, while also not having any on-theme [[counterpart]] so farDEF ("Neferabyss") of the archetype. It requires 3 Tributes and once, as "Ogdoabyss" is a [[Quick Effect]]more straightforward finisher, can being able to send ''virtually'' all non-"Ogdoadic" monsters on the field to the Graveyard, which can be used to disrupt the opponent's strategy or clear and wipe the field for a finishing wave of attacks. "Neferabyss", on the other hand, is more of an extender, being capable of Special Summoning itself without requiring a Tribute and allowing the player to Special Summon ''any'' monster, Reptile or no, from the Graveyard. Their Spell/Trap support is very versatile: "[[Ogdoadic Water Lily]]" and "[[Ogdoadic Calling|Calling]]" reward the player for having as many "Ogdoadic" monsters in the Graveyard as possible, Special Summoning Reptile monster(s) and potentially bypassing the Tribute costs of the "Ogdoadic" bosses. "[[Ogdoadic Daybreak|Daybreak]]" provides Tokens for Tributes/Link/Synchro Summons and can [[mill]] a Reptile. "[[Ogdoadic Serpent Strike|Serpent Strike]]" and "[[Ogdoadic Hollow|Hollow]]" are [[Continuous Spell]]/[[Continuous Trap Card|Trap Card]]s with [[Main Phase]] effects that interact with the opponent's Graveyard in some degree and provide card advantage off the effects of "Aron" and "Amunessia" in the process, respectivelly. 

"[[King of the Feral Imps]]" is an essential engine that not only searches for resources but also prevents "Nunu" from being banished after it has Special Summoned itself, as well as the Level 4 "Ogdoadic" revived by "Keurse". Also, being a Graveyard-reliant theme, "[[Snake Rain]]" is an indispensable card for the Deck's consistency. Other generic support cards for Reptile monsters, like "[[Damage = Reptile]]", or "[[Yamorimori]]" can also be included; "[[Lightserpent]]" can Special Summon itself after being sent to the Graveyard with the effects of "Zohah" or "Flogos", and then serve as fodder for Tributes. "[[Night Sword Serpent]]" is also an option to send to the Graveyard with "Snake Rain", "Ogdoadic Serpent Strike" or the second effect of "Zohah", as it will also Special Summon itself. Finally, "[[Danger!? Tsuchinoko?]]" can add a layer of consistency to the Deck by correcting the player's hand, setting up the Graveyard and giving a draw while also serving as a Tribute fodder. Among non-Reptile generic options, "[[Lair of Darkness]]" can be used to alleviate the cost of Special Summoning the high Level "Ogdoadic" monsters by Tributing opposing monsters and/or Tokens, whilst "[[Darkest Diabolos, Lord of the Lair]]" can be used either as a Tribute fodder or for [[Rank]] 8 Xyz Summons. Also, being a LIGHT and DARK strategy, monsters like "[[Black Luster Soldier - Envoy of the Beginning]]" and/or "[[Chaos Dragon Levianeer]]" may also be useful. The Deck in general has little attachment to the Extra Deck; thus, "[[Pot of Extravagance]]" or "[[Pot of Prosperity]]" can be included to either provide draw power or increase the odds of having access to fundamental cards like "Snake Rain". 

* [[FlogosOgdoabyss, the Ogdoadic BoundlessOverlord]]

* [[Ahrima, the Wicked WardenAlien Kid]]

* [[Alien KidDark Alligator]]* [[Evil Dragon Ananta]]* [[Kagetokage]]* [[Lamia]]

* [[KagetokageThe Chaos Creator]]* [[LamiaWhite Dragon Wyverburster]]* [[Supreme Sovereign Serpent of GolgondaTherion "Empress" Alasia]]* [[Vanguard of the Underground EmperorRagnaraika Armored Lizard]]

* [[Dragon Core Hexer]] ''(with "[[Hieratic Dragon of Tefnuit]]")''* [[Assault Synchron]]* [[Satellite Synchron]]|fusion monsters =* [[Extox Hydra]] ''(with "Instant Fusion")''

* [[Chaos Ruler, the Chaotic Magical Dragon]](OCG or Traditional Format only)

* [[Cosmic Slicer Zer'ollRaika no Kurokamitsuki]]* [[Ragnaraika Chain Coils]]|normal spells =

* [[The Melody of Awakening Dragon]] ''(with "[[Chaos Dragon Levianeer]]" and "[[Darkest Diabolos, Lord of the Lair]]")''

* [[Instant Fusion]]|field spells =* [[Ogdoadic Origin]]* [[Lair of Darkness]]|traps continuous spells =* [[Ogdoadic Serpent Strike]]* [[Ragnaraika Bloom]]|quick-play spells =* [[Ogdoadic HollowDaybreak]]|normal traps =