Ogdoadic Deck Breakdown

LIGHT 10

If this card is in your GY: You can Tribute 3 monsters; Special Summon this card. Once, while this card is face-up on the field (Quick Effect): You can send all monsters from the field to the GY, except face-up monsters Special Summoned from the GY. You can only use each effect of "Ogdoabyss, the Ogdoadic Overlord" once per turn.

DARK 8

If this card is in your GY: You can Tribute 1 monster; Special Summon this card, then your opponent can add 1 monster from their GY to their hand. If this card is Special Summoned: You can target 2 of your banished monsters, including a Reptile monster; return them to the GY. You can only use each effect of "Aleirtt, the Ogdoadic Dark" once per turn.

LIGHT 4

You can send this card from your hand to the GY; send 1 DARK Reptile monster from your Deck to the GY. If you control no monsters, or you control an "Ogdoadic" monster: You can Special Summon this card from your GY, but banish it when it leaves the field, also you cannot Special Summon monsters, except Reptile monsters, while this card is face-up in the Monster Zone. You can only use each effect of "Nunu, the Ogdoadic Remnant" once per turn.

DARK

2 monsters, including a Reptile monster If this card is Link Summoned: You can target 1 face-up monster your opponent controls; change its ATK to 0. During your Main Phase, if your opponent controls a monster(s) with 0 ATK: You can add Reptile monsters with different names from your Deck to your hand, up to the number of monsters your opponent controls with 0 ATK, also, you cannot Special Summon monsters from the Extra Deck for the rest of this turn, except Reptile monsters. You can only use each effect of "Reptilianne Echidna" once per turn.

FIRE 8

1 Tuner + 1+ non-Tuner monsters When this card destroys a monster by battle: You can target up to 2 cards your opponent controls; destroy them. If this card is destroyed by battle, or if this card in its owner's possession is destroyed by an opponent's card effect: You can add 1 "Mathmech" Spell/Trap from your Deck to your hand. You can only use each effect of "Geomathmech Magma" once per turn.

DARK 4

You can send this card from your hand to the GY; send 1 LIGHT Reptile monster from your Deck to the GY. If this card is Normal or Special Summoned: You can add 1 "Ogdoadic" Spell/Trap from your Deck to your hand. You can only use each effect of "Nauya, the Ogdoadic Remnant" once per turn.

DARK 4

If you control a DARK Reptile monster: You can Special Summon this card from your hand, then, if your opponent controls any monsters with 0 ATK, you can Special Summon up to an equal number of "Reptilianne" monsters from your hand. You can only use this effect of "Reptilianne Coatl" once per turn. If this card you control would be used as Synchro Material for a Reptile monster, you can treat it as a non-Tuner.

DARK 3

If you control a Reptile monster, you can Special Summon this card (from your hand). You can only Special Summon "Black Mamba" once per turn this way. If this card is Normal or Special Summoned: You can target 1 monster your opponent controls; send 1 Reptile monster from your Deck to the GY, and if you do, change the targeted monster's battle position. You can only use this effect of "Black Mamba" once per turn.

FIRE

2 monsters with different names If this card is Link Summoned: You can discard 1 card, then target 1 Spell/Trap your opponent controls; destroy it, then, if this card was co-linked when this effect was activated, you can draw 1 card. You can only use this effect of "Knightmare Phoenix" once per turn. Co-linked monsters you control cannot be destroyed by battle.

LIGHT 8

If this card is in your GY: You can Tribute 1 monster; Special Summon this card, then your opponent can Special Summon 1 monster from their GY, but negate its effects. If this card is Special Summoned: You can target 1 Level 4 or lower "Ogdoadic" monster in your GY; Special Summon it, but banish it when it leaves the field. You can only use each effect of "Keurse, the Ogdoadic Light" once per turn.

LIGHT

2 Level 8 monsters Once per turn: You can detach 1 Xyz Material from this card; Tribute any number of monsters from your hand and/or your side of the field (minimum 1), then destroy an equal number of cards on the field.

Spell Normal

Discard 1 card. Select 4 Reptile-Type monsters from your Deck and send them to the Graveyard.

Spell Quick

Pay 1000 LP, then target 1 Spell/Trap on the field; banish it.

LIGHT 11

During the Main Phase, if your opponent Normal or Special Summoned 5 or more monsters this turn (Quick Effect): You can Tribute as many face-up monsters on the field as possible, and if you do, Special Summon this card from your hand, then Special Summon 1 "Primal Being Token" (Rock/LIGHT/Level 11/ATK ?/DEF ?) to your opponent's field. (This Token's ATK/DEF become the combined original ATK/DEF of the Tributed monsters.) You can only use this effect of "Nibiru, the Primal Being" once per turn.

DARK

2 Level 8 monsters You can only Special Summon "Dingirsu, the Orcust of the Evening Star(s)" once per turn. You can also Xyz Summon this card by using an "Orcust" Link Monster you control as material. If a card(s) you control would be destroyed by battle or card effect, you can detach 1 material from this card instead. If this card is Special Summoned: You can activate 1 of these effects; ● Send 1 card your opponent controls to the GY. ● Attach 1 of your banished Machine monsters to this card as material.

DARK 4

If this card is sent from the field to the GY, or Special Summoned from the GY: You can activate this effect; your opponent draws 1 card, and if they do, you add 1 "Ogdoadic" monster from your Deck to your hand, except "Zohah, the Ogdoadic Boundless", then, each player sends 1 card from their hand to the GY. If this card is in your GY: You can send 1 card from your hand to the GY; add this card to your hand. You can only use each effect of "Zohah, the Ogdoadic Boundless" once per turn.

Spell Normal

Send 1 Reptile monster from your Deck to the GY, then if you have 5 or more Reptile monsters with different names in your GY, you can Special Summon 1 Reptile monster from your GY. You can only activate 1 "Ogdoadic Water Lily" per turn.

DARK 8

Cannot be Normal Summoned/Set. Must first be Special Summoned (from your hand) by banishing 3 LIGHT and/or DARK monsters from your GY. When Summoned this way: You can activate this effect; apply the following effect, based on the Attribute(s) of the monsters banished for the Special Summon, also this card cannot attack for the rest of this turn. ● Only LIGHT: Special Summon 1 monster from your GY in Defense Position. ● Only DARK: Shuffle 1 random card from your opponent's hand into the Deck. ● Both LIGHT and DARK: Destroy up to 2 cards on the field. You can only use this effect of "Chaos Dragon Levianeer" once per turn.

DARK

3+ Effect Monsters Neither player can target this card with monster effects. Once per turn (Quick Effect): You can target 1 face-up monster on the field; it loses 500 ATK/DEF. Your opponent cannot activate cards or effects in response to this effect's activation. At the start of the Damage Step, if this card attacks an opponent's monster: You can place that opponent's monster in a zone this card points to and take control of it, but send it to the GY during the End Phase of the next turn.

DARK 0

(This card's original Level is always treated as 12.) Cannot be Synchro Summoned. Must be Special Summoned (from your Extra Deck) by sending 2 Level 8 or higher monsters you control with the same Level to the Graveyard (1 Tuner and 1 non-Tuner), and cannot be Special Summoned by other ways. Cannot be destroyed by card effects. This card gains 1000 ATK for each monster on the field. Once per turn, during either player's Main Phase: You can Special Summon the same number of "Utchatzimime Tokens" (Fiend-Type/DARK/Level 1/ATK 0/DEF 0) on each player's field in Defense Position, so as to Summon as many as possible, also this card cannot attack for the rest of this turn.

DARK

2 Level 4 monsters Once per turn: You can detach 1 Xyz Material from this card; add 1 Reptile-Type monster from your Deck to your hand.

DARK

2 Level 8 monsters Gains 100 ATK and DEF for each monster in the GYs. Once per turn: You can detach 1 material from this card; until the end of your opponent's next turn, this card cannot be destroyed by card effects, also neither player can Special Summon monsters from the GYs.

DARK 8

Cannot be Normal Summoned/Set. Must first be Special Summoned (from your hand) by banishing 3 LIGHT and/or DARK monsters from your GY. When Summoned this way: You can activate this effect; apply the following effect, based on the Attribute(s) of the monsters banished for the Special Summon, also this card cannot attack for the rest of this turn. ● Only LIGHT: Special Summon 1 monster from your GY in Defense Position. ● Only DARK: Shuffle 1 random card from your opponent's hand into the Deck. ● Both LIGHT and DARK: Destroy up to 2 cards on the field. You can only use this effect of "Chaos Dragon Levianeer" once per turn.

LIGHT 11

During the Main Phase, if your opponent Normal or Special Summoned 5 or more monsters this turn (Quick Effect): You can Tribute as many face-up monsters on the field as possible, and if you do, Special Summon this card from your hand, then Special Summon 1 "Primal Being Token" (Rock/LIGHT/Level 11/ATK ?/DEF ?) to your opponent's field. (This Token's ATK/DEF become the combined original ATK/DEF of the Tributed monsters.) You can only use this effect of "Nibiru, the Primal Being" once per turn.

LIGHT 4

You can send this card from your hand to the GY; send 1 DARK Reptile monster from your Deck to the GY. If you control no monsters, or you control an "Ogdoadic" monster: You can Special Summon this card from your GY, but banish it when it leaves the field, also you cannot Special Summon monsters, except Reptile monsters, while this card is face-up in the Monster Zone. You can only use each effect of "Nunu, the Ogdoadic Remnant" once per turn.

DARK

3+ Effect Monsters Neither player can target this card with monster effects. Once per turn (Quick Effect): You can target 1 face-up monster on the field; it loses 500 ATK/DEF. Your opponent cannot activate cards or effects in response to this effect's activation. At the start of the Damage Step, if this card attacks an opponent's monster: You can place that opponent's monster in a zone this card points to and take control of it, but send it to the GY during the End Phase of the next turn.

DARK

2 Level 8 monsters You can only Special Summon "Dingirsu, the Orcust of the Evening Star(s)" once per turn. You can also Xyz Summon this card by using an "Orcust" Link Monster you control as material. If a card(s) you control would be destroyed by battle or card effect, you can detach 1 material from this card instead. If this card is Special Summoned: You can activate 1 of these effects; ● Send 1 card your opponent controls to the GY. ● Attach 1 of your banished Machine monsters to this card as material.

LIGHT

2 Level 8 monsters Once per turn: You can detach 1 Xyz Material from this card; Tribute any number of monsters from your hand and/or your side of the field (minimum 1), then destroy an equal number of cards on the field.

DARK

2 Level 4 monsters Once per turn: You can detach 1 Xyz Material from this card; add 1 Reptile-Type monster from your Deck to your hand.

Spell Quick

Pay 1000 LP, then target 1 Spell/Trap on the field; banish it.