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.

LIGHT

2 Effect Monsters You can target 1 face-up monster your opponent controls this card points to; this turn, if you Link Summon a Link-5 monster using this card you control, you can also use that monster your opponent controls as material. You can only use this effect of "Moon of the Closed Heaven" once per turn.

LIGHT

2 monsters, including a LIGHT Fiend monster During your Main Phase: You can Fusion Summon 1 Fiend Fusion Monster from your Extra Deck, by shuffling its materials from your GY into the Deck. You can target 1 LIGHT non-Link Fiend monster you control; equip this card from your field or GY to that monster you control as an Equip Spell with the following effect. ● Your opponent cannot target the equipped monster with card effects. You can only use each effect of "Fiendsmith's Sequence" once per turn.

DARK

2 non-Link Monsters During your opponent's Main Phase, you can (Quick Effect): Immediately after this effect resolves, Link Summon 1 Link Monster using materials you control, including this card. You can only use this effect of "I:P Masquerena" once per turn. A Link Monster that used this card as material cannot be destroyed by your opponent's card effects.

LIGHT 4

When this card is Normal Summoned: You can target 1 Level 4 Cyberse monster in your GY; Special Summon it, but it cannot activate its effects. A "Mathmech" monster that was Synchro or Xyz Summoned using this card on the field as material gains the following effect. ● Once per turn, during the turn this card was Special Summoned, when your opponent activates a card or effect (Quick Effect): You can negate that effect. You can only use each effect of "Mathmech Diameter" once per turn.

WIND 1

If a card(s) is added from the Main Deck to your opponent's hand, except during the Draw Phase (Quick Effect): You can send this card from your hand to the GY; for the rest of this turn, cards cannot be added from either player's Main Deck to the hand.

DARK

2 Effect Monsters If this card is Link Summoned using a Fusion, Synchro, Xyz, or Link Monster as material: You can target 1 card on the field or in either GY; banish it, also your monsters cannot attack directly this turn. When your opponent activates a card or effect (Quick Effect): You can target 2 face-up monsters on the field, including a monster you control; banish both until the End Phase. You can only use each effect of "S:P Little Knight" once per turn.

Trap Normal

Tribute 1 DARK monster with 2500 or more ATK, and declare 1 type of card (Spell or Trap); look at your opponent's hand, all Spells/Traps they control, and all cards they draw until the end of their 3rd turn after this card's activation, and destroy all cards of that declared type.

Spell Normal

This card can be used to Ritual Summon any Reptile Ritual Monster. Activate 1 of these effects (but you can only use each effect of "Mitsurugi Ritual" once per turn); ● Ritual Summon 1 Reptile Ritual Monster from your Deck, by Tributing Reptile monsters from your hand or field whose total Levels equal the Level of the Ritual Monster. ● Ritual Summon 1 Reptile Ritual Monster from your hand, by Tributing up to 2 Reptile monsters from your hand, Deck, or field, whose total Levels equal the Level of the Ritual Monster.

DARK 10

1 Tuner + 1+ non-Tuner LIGHT or DARK monsters For this card's Synchro Summon, you can treat 1 LIGHT or DARK monster you control as a Tuner. If this card is Special Summoned: You can target 1 card on the field; banish it. This card gains these effects based on the original Attributes of materials used for its Synchro Summon. ● LIGHT: Synchro Monsters you control are unaffected by monster effects activated by your opponent. ● DARK: Monsters you control cannot be destroyed by battle.

LIGHT 4

You can send 1 "Mathmech" monster, except "Mathmech Circular", from your Deck to your GY; Special Summon this card from your hand, also you can only attack with 1 monster for the rest of this turn. If a "Mathmech" monster is Normal or Special Summoned to your field while you control this monster (except during the Damage Step): You can add 1 "Mathmech" Spell/Trap from your Deck to your hand. You can only use each effect of "Mathmech Circular" once per turn.

Spell Quick

When you activate this card, you can also Tribute 1 Reptile monster in your hand or field; apply 1 of these effects, or if you Tributed a monster at activation, you can apply both effects in sequence. ● Add 1 "Mitsurugi" monster from your Deck to your hand. ● Take 800 damage, then you can Special Summon 1 "Mitsurugi" monster from your hand or GY, but it cannot attack directly. You can only activate 1 "Mitsurugi Prayers" 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.

Trap Normal

At the end of the Battle Phase, if your opponent controls more cards than you do: You can make your opponent banish cards from their field face-down so they control the same number of cards as you do. If you control no cards, you can activate this card from your hand.

Trap Normal

When your opponent activates a card or effect: Tribute 1 Level 5 or higher Reptile monster; negate that effect, and if you do, destroy that card. You can banish this card from your GY, then target 1 Reptile monster in your GY; Special Summon it, and if you do, Tribute 1 other monster you control. You can only use 1 "Mitsurugi Great Purification" effect per turn, and only once that turn.

DARK 8

You can Ritual Summon this card with "Mitsurugi Ritual". If your opponent Special Summons a monster(s) (except during the Damage Step): You can target 1 Reptile monster in your GY, except "Futsu no Mitama no Mitsurugi"; Special Summon it. You can only activate this effect of "Futsu no Mitama no Mitsurugi" once per Chain. If this card is Tributed: You can add 1 "Mitsurugi" card from your Deck to your hand, except "Futsu no Mitama no Mitsurugi", then you can Special Summon this card. You can only use this effect of "Futsu no Mitama no Mitsurugi" once per turn.

DARK 8

You can Ritual Summon this card with "Mitsurugi Ritual". If this card is Special Summoned: You can destroy all monsters your opponent controls. When your opponent activates a card or effect (Quick Effect): You can activate this effect; your opponent can discard 1 card, or that effect is negated. If this card is Tributed: You can add 1 "Mitsurugi" card from your Deck to your hand, except "Ame no Murakumo no Mitsurugi", then you can Special Summon this card. You can only use each effect of "Ame no Murakumo no Mitsurugi" once per turn.

LIGHT

1 LIGHT Fiend monster You can only Special Summon "Fiendsmith's Requiem(s)" once per turn. During the Main Phase (Quick Effect): You can Tribute this card; Special Summon 1 "Fiendsmith" monster from your hand or Deck. You can target 1 LIGHT non-Link Fiend monster you control; equip this card from your field or GY to that monster you control as an Equip Spell that gives it 600 ATK. You can only use this effect of "Fiendsmith's Requiem" once per turn.

Spell Normal

If you control no face-up cards: Activate 1 of these effects; ● Destroy all Attack Position monsters your opponent controls. ● Destroy all Spells and Traps your opponent controls. You can only activate 1 "Lightning Storm" per turn.

Spell Normal

If your opponent has activated a monster effect during this turn: Set 1 Normal Spell/Trap directly from your Deck, except "Triple Tactics Thrust", or if your opponent controls a monster, you can add it to your hand instead. That Set card cannot be activated this turn. You can only activate 1 "Triple Tactics Thrust" per turn.

DARK 4

If this card is Normal or Special Summoned, or if this card is Tributed: You can target 1 "Mitsurugi" card in your GY or banishment, except "Mitsurugi no Mikoto, Kusanagi"; add it to your hand. If another Reptile monster(s) you control would be destroyed by battle or card effect, you can Tribute this card instead. You can only use each effect of "Mitsurugi no Mikoto, Kusanagi" once per turn.

DARK 4

If this card is Normal or Special Summoned, or if this card is Tributed: You can add 1 "Mitsurugi" Spell/Trap from your Deck to your hand. If another Reptile monster(s) you control would be destroyed by battle or card effect, you can Tribute this card instead. You can only use each effect of "Mitsurugi no Mikoto, Saji" once per turn.

Trap Normal

Tribute 1 DARK monster with 2000 or more ATK; look at your opponent's hand, all monsters they control, and all cards they draw until the end of their 3rd turn after this card's activation, and destroy all those monsters with 1500 or less ATK.

LIGHT 1

When this card is discarded to the Graveyard, Special Summon it.

Spell Normal

Add 1 LIGHT Fiend monster from your Deck to your hand, then discard 1 card. You can banish this card from your GY; Fusion Summon 1 "Fiendsmith" Fusion Monster from your Extra Deck, using monsters from your hand or field. You can only use each effect of "Fiendsmith's Tract" once per turn.

LIGHT 4

(This card is always treated as a "Fiendsmith" card.) If this card is Normal or Special Summoned: You can send 1 "Fiendsmith" card from your Deck to the GY, except "Lacrima the Crimson Tears". During your opponent's turn, if this card is in your GY (Quick Effect): You can target 1 "Fiendsmith" Link Monster in your GY; shuffle this card into the Deck, and if you do, Special Summon that monster. You can only use each effect of "Lacrima the Crimson Tears" once per turn.

WATER 4

If you control no cards (Quick Effect): You can discard this card; apply these effects this turn. ● Each time your opponent Normal or Special Summons a monster(s) from the hand, immediately draw 1 card. ● Once, during this End Phase, if the number of cards in your hand is more than the number of cards your opponent controls +6, you must randomly shuffle cards from your hand into the Deck so the number in your hand equals the number your opponent controls +6. You can only activate 1 other "Mulcharmy" monster effect, the turn you activate this effect.

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 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 9

"Fiendsmith Engraver" + 2 LIGHT Fiend monsters (Quick Effect): You can negate the effects of a number of face-up cards on the field, up to the total Link Rating of Link Monsters equipped to this card, until the end of this turn. If this card is sent to the GY: You can shuffle 1 other LIGHT Fiend monster from your GY into the Deck/Extra Deck, then target 1 card on the field; send it to the GY. You can only use each effect of "Fiendsmith's Desirae" once per turn.

LIGHT 5

You can Set this card from your hand to your Spell & Trap Zone as a Spell. During your opponent's turn, if this Set card in the Spell & Trap Zone is destroyed and sent to your GY: Special Summon it. During your opponent's turn (Quick Effect): You can Tribute this card from your hand or face-up field; neither player can banish cards for the rest of this turn.

DARK

2 monsters If this card is Link Summoned using 2 DARK monsters with different names as material, it gains this effect. ● You can Tribute 1 monster, then target 1 face-up card on the field; place 1 Patrol Counter on it. You can only use this effect of "Beat Cop from the Underworld" once per turn. (If a card with a Patrol Counter would be destroyed by battle or card effect, remove 1 Patrol Counter from it instead.)

LIGHT 6

You can discard this card; add 1 "Fiendsmith" Spell/Trap from your Deck to your hand. You can target 1 "Fiendsmith" Equip Card you control and 1 monster on the field; send them to the GY. If this card is in your GY: You can shuffle 1 other LIGHT Fiend monster from your GY into the Deck/Extra Deck; Special Summon this card. You can only use each effect of "Fiendsmith Engraver" once per 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.

WATER 4

If this card is sent to the GY by a card effect: You can Special Summon this card, but banish it when it leaves the field. You can only use this effect of "Night Sword Serpent" once per turn.

EARTH

3 Level 4 monsters If a "Mathmech" card(s) you control would be destroyed by card effect, you can detach 1 material from this card instead. If this card is Xyz Summoned: You can detach up to 3 materials from it, then choose that many effects (you cannot choose the same effect twice, and you resolve them in the listed order, skipping any that were not chosen); ● Send 1 random card from your opponent's hand to the GY. ● Send 1 monster your opponent controls to the GY. ● Send 1 Spell/Trap your opponent controls to the GY. You can only use this effect of "Primathmech Laplacian" once per turn.

Spell Quick

Tribute 1 Reptile monster; for every 2 Levels that Tributed monster had on the field, Special Summon up to 1 "Ogdoadic Token" (Reptile/DARK/Level 2/ATK 0/DEF 0). During your Main Phase: You can banish this card from your GY, then target 1 of your banished Reptile monsters; shuffle it into the Deck, then you can send 1 Reptile monster from your Deck to the GY. You can only use each effect of "Ogdoadic Daybreak" once per turn.

Trap Normal

Target 1 face-up monster your opponent controls; negate its effects (until the end of this turn), then, if this card was Set before activation and is on the field at resolution, for the rest of this turn all other Spell/Trap effects in this column are negated. If you control no cards, you can activate this card from your hand.

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.

EARTH

1 Normal Monster Once per turn: You can Special Summon 1 Level 4 or lower Normal Monster from your hand to your zone this card points to.

DARK

2+ monsters, including a Fiend monster During the Main Phase (Quick Effect): You can discard 1 card, then activate 1 of these effects; ● Destroy 1 card on the field. ● Banish this card (until the End Phase), and if you do, Special Summon 1 LIGHT or DARK monster from your GY. During your Standby Phase: You can draw cards equal to the number of different Monster Types in your GY, then place cards from your hand on the bottom of the Deck in any order, equal to the number of cards you drew. You can only use each effect of "A Bao A Qu, the Lightless Shadow" once per turn.

LIGHT 4

When this card is Normal or Flip Summoned: You can add 1 Ritual Monster or 1 Ritual Spell from your Deck to your hand.

LIGHT

2+ monsters, including a LIGHT Fiend monster Once per turn (Quick Effect): You can target 1 LIGHT non-Link Fiend monster in your GY; Special Summon it, and if you do, equip this card you control to that monster as an Equip Spell with the following effects. ● The equipped monster gains ATK equal to the total Link Rating of Link Monsters equipped to it x 600. ● If the equipped monster attacks a Defense Position monster, inflict piercing battle damage to your opponent.

EARTH

2+ Level 4 monsters You can Tribute 1 monster; Special Summon 1 Level 4 "Mathmech" monster from your hand or GY. If this card is Xyz Summoned: You can detach 2 to 4 materials from this card, then activate the appropriate effect; ● 2: Add 1 "Mathmech" card from your Deck to your hand. ● 3: Add 1 Level 4 monster from your Deck to your hand. ● 4: Add 1 Spell/Trap from your Deck to your hand. You can only use each effect of "Primathmech Alembertian" once per turn.

DARK 4

You can Tribute 1 Cyberse monster; Special Summon 1 "Mathmech" monster from your Deck. If this card is sent to the GY: You can target 1 Cyberse monster you control in the Extra Monster Zone; it can make up to 2 attacks on monsters during each Battle Phase this turn. You can only use each effect of "Mathmech Nabla" once per turn.

FIRE 3

When a card or effect is activated that includes any of these effects (Quick Effect): You can discard this card; negate that effect. ● Add a card from the Deck to the hand. ● Special Summon from the Deck. ● Send a card from the Deck to the GY. You can only use this effect of "Ash Blossom & Joyous Spring" once per turn.

Trap Normal

Target up to 3 "Mathmech" monsters in your GY with different names, then activate 1 of these effects; ● Special Summon them, but their effects are negated, then, immediately after this effect resolves, Synchro Summon 1 "Mathmech" Synchro Monster using only those monsters, and shuffle the materials into the Deck instead of sending them to the GY. ● Special Summon them, but their effects are negated, then, immediately after this effect resolves, Xyz Summon 1 "Mathmech" Xyz Monster using only those monsters. You can only activate 1 "Mathmech Superfactorial" per turn.