Created by: YGO Mod (20517634)
Created On: 05/09/2026
Main: 52 Extra: 16



FIRE
4Mathmech Addition
ATK:
1000
DEF:
1000
You can target 1 face-up monster on the field; you cannot Special Summon monsters from the Extra Deck for the rest of this turn, except Cyberse monsters, also Special Summon this card from your hand (but it cannot attack this turn), and if you do, the targeted monster gains 1000 ATK until the end of this turn. You can only use this effect of "Mathmech Addition" once per turn.



LIGHT
4Mathmech Circular
ATK:
1500
DEF:
1500
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.



DARK
8Mitsurugi no Miko, Wousu
ATK:
2000
DEF:
2000
You can Special Summon this card (from your hand) by Tributing 1 other Reptile monster from your hand and 1 monster your opponent controls, but you cannot Special Summon nor activate monster effects for the rest of this turn, except Reptile monsters. You can only Special Summon "Mitsurugi no Miko, Wousu" once per turn this way. If this card is Tributed: You can discard 1 card, and if you do, add this card to your hand. You can only use this effect of "Mitsurugi no Miko, Wousu" once per turn.



DARK
4Mitsurugi no Mikoto, Aramasa
ATK:
1200
DEF:
900
If this card is Normal or Special Summoned, or if this card is Tributed: You can add 1 "Mitsurugi" monster from your Deck to your hand, except "Mitsurugi no Mikoto, Aramasa". 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, Aramasa" once per turn.



DARK
4Mitsurugi no Mikoto, Kusanagi
ATK:
1600
DEF:
400
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
4Mitsurugi no Mikoto, Saji
ATK:
1000
DEF:
1700
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.



WIND
4Mulcharmy Fuwalos
ATK:
100
DEF:
600
If you control no cards (Quick Effect): You can discard this card; apply these effects this turn. ● Each time your opponent Special Summons a monster(s) from the Deck and/or Extra Deck, 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.



WATER
4Mulcharmy Purulia
ATK:
100
DEF:
600
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.



DARK
8Ame no Habakiri no Mitsurugi
ATK:
2400
DEF:
1800
You can Ritual Summon this card with "Mitsurugi Ritual". Monsters your opponent controls lose 800 ATK. You can reveal this card in your hand; Special Summon 1 "Mitsurugi" monster from your Deck, then Tribute 1 monster you control. You can only use this effect of "Ame no Habakiri no Mitsurugi" once per Duel. If this card is Tributed: You can add 1 "Mitsurugi" card from your Deck to your hand, except "Ame no Habakiri no Mitsurugi", then you can Special Summon this card. You can only use this effect of "Ame no Habakiri no Mitsurugi" once per turn.



DARK
8Ame no Murakumo no Mitsurugi
ATK:
3200
DEF:
800
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.



DARK
7Cyberse Code Magician
ATK:
2500
DEF:
2000
You can Ritual Summon this card with "Cynet Ritual". If a Link Monster you control would be used as Link Material for a Cyberse monster, this card in your hand can also be used as material. If this card is sent from the hand or field to the GY: You can send 1 Cyberse monster from your Deck to the GY, or if this Ritual Summoned card was sent to the GY, you can Special Summon that monster instead, also in either case, you cannot Special Summon for the rest of this turn, except Cyberse monsters. You can only use each effect of "Cyberse Code Magician" once per turn.



DARK
10End of the World Ruler
ATK:
3000
DEF:
2900
You can Ritual Summon this card with an "End of the World" card. This card's name becomes "Demise, King of Armageddon" while in the hand or field. You can only use each of the following effects of "End of the World Ruler" once per turn. You can reveal this card in your hand, pay 2000 LP, and banish 1 Ritual Spell from your Deck; apply that card's activation effect that Ritual Summons a monster. You can pay 2000 LP; destroy as many other cards on the field as possible, then this card gains 2900 ATK.



DARK
8Futsu no Mitama no Mitsurugi
ATK:
2000
DEF:
3400
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.



FIRE
3Ash Blossom & Joyous Spring
ATK:
0
DEF:
1800
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.



LIGHT
4Mathmech Diameter
ATK:
1000
DEF:
1500
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.



DARK
4Mathmech Nabla
ATK:
1000
DEF:
1500
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.



LIGHT
4Mathmech Sigma
ATK:
1000
DEF:
1500
If you control no monsters in the Extra Monster Zone, while this card is in your hand or GY: You can Special Summon this card, but banish it when it leaves the field, also you cannot Special Summon monsters from the Extra Deck for the rest of this turn, except Cyberse monsters. You can only use this effect of "Mathmech Sigma" once per turn. If this card you control is used as Synchro Material for a "Mathmech" monster, you can treat it as a non-Tuner.



Spell
NormalMitsurugi Mirror
This card can be used to Ritual Summon any Reptile Ritual Monster from your hand or GY. You must also Tribute Reptile monsters from your hand or field whose total Levels equal or exceed the Level of the Ritual Monster. If "Ame no Murakumo no Mitsurugi", "Futsu no Mitama no Mitsurugi", or "Ame no Habakiri no Mitsurugi" you control is Tributed, while this card is in your GY: You can shuffle this card into the Deck. You can only use each effect of "Mitsurugi Mirror" once per turn.



Spell
QuickMitsurugi Prayers
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.



Spell
NormalMitsurugi Ritual
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.



Trap
NormalDominus Impulse
If your opponent controls a card, you can activate this card from your hand. When a card or effect is activated that includes an effect that Special Summons a monster(s): Negate that effect, then if you have a Trap in your GY, destroy that card. If you activated this card from your hand, you cannot activate the effects of LIGHT, EARTH, and WIND monsters for the rest of this Duel. You can only activate 1 "Dominus Impulse" per turn.



Trap
NormalMathmech Superfactorial
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.



Trap
NormalMitsurugi Great Purification
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.



Trap
CounterRed Reboot
When your opponent activates a Trap Card: Negate the activation, and if you do, Set that card face-down, then they can Set 1 other Trap directly from their Deck. For the rest of this turn after this card resolves, your opponent cannot activate Trap Cards. You can activate this card from your hand by paying half your LP.



DARKAccesscode Talker
ATK:
2300
LINK-4
Link Arrow:
Top
Left
Right
Bottom
2+ Effect Monsters Your opponent cannot activate cards or effects in response to this card's effect activations. If this card is Link Summoned: You can target 1 Link Monster that was used as material for its Link Summon; this card gains ATK equal to that monster's Link Rating x 1000. You can banish 1 Link Monster from your field or GY; destroy 1 card your opponent controls, also for the rest of this turn, you cannot banish monsters with that same Attribute to activate this effect of "Accesscode Talker".



DARKAllied Code Talker @Ignister
ATK:
2300
LINK-5
Link Arrow:
Left
Right
Bottom-Left
Bottom
Bottom-Right
3+ Effect Monsters If this card is Link Summoned: You can Special Summon as many Cyberse monsters with 2300 ATK from your GY as possible to your zones this card points to, and if you do, this card gains 500 ATK for each, also you cannot Special Summon for the rest of this turn. When your opponent activates a card or effect (Quick Effect): You can Tribute 1 of your Link Monsters this card points to; negate the activation, and if you do, banish that card. You can only use this effect of "Allied Code Talker @Ignister" once per turn.



DARKCyberse Contract Witch
ATK:
800
LINK-2
Link Arrow:
Bottom-Left
Bottom
2 monsters with the same Type If this card is Link Summoned, or a monster(s) is Special Summoned to a zone(s) this card points to: You can send 1 Spell from your hand or face-up field to the GY; add 1 Ritual Monster from your Deck to your hand. You can target 1 Ritual, Fusion, Synchro, or Xyz Monster this card points to; Special Summon 1 monster from your GY with the same Type but a different card type (Ritual, Fusion, Synchro, or Xyz). You can only use each effect of "Cyberse Contract Witch" once per turn.



FIREDecode Talker Heatsoul
ATK:
2300
LINK-3
Link Arrow:
Top
Bottom-Left
Bottom-Right
2+ Cyberse monsters with different Attributes Gains 500 ATK for each monster it points to. (Quick Effect): You can pay 1000 LP; draw 1 card, then if your LP are 2000 or less, you can banish this card from the field, and if you do, Special Summon 1 Link-3 or lower Cyberse monster from your Extra Deck, except "Decode Talker Heatsoul". You can only use this effect of "Decode Talker Heatsoul" once per turn.



EARTHDyna Mondo
ATK:
2200
LINK-2
Link Arrow:
Top
Bottom
2 monsters, including a Ritual Monster If this card is Special Summoned: You can target 1 card on the field and 1 Ritual Monster in your GY; shuffle both into the Deck. During your opponent's turn (Quick Effect): You can Tribute this card, then target 1 Ritual Monster in your GY; either add it to your hand or Special Summon it. You can only use each effect of "Dyna Mondo" once per turn.



DARKI:P Masquerena
ATK:
800
LINK-2
Link Arrow:
Bottom-Left
Bottom-Right
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.



DARKLink Decoder
ATK:
300
LINK-1
Link Arrow:
Bottom
1 Level 4 or lower Cyberse monster If this card is sent to the GY as material for a Cyberse Link Monster with 2300 or more original ATK: You can Special Summon this card, but banish it when it leaves the field. You can only use this effect of "Link Decoder" once per turn.



DARKReptilianne Echidna
ATK:
200
LINK-2
Link Arrow:
Left
Bottom-Right
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.



DARKS:P Little Knight
ATK:
1600
LINK-2
Link Arrow:
Left
Right
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.



FIRESalamangreat Almiraj
ATK:
0
LINK-1
Link Arrow:
Bottom-Right
1 Normal Summoned monster with 1000 or less ATK (Quick Effect): You can Tribute this card, then target 1 monster you control; it cannot be destroyed by your opponent's card effects this turn. When a Normal Summoned monster you control is destroyed by battle, while this card is in your GY: You can Special Summon this card. You can only use this effect of "Salamangreat Almiraj" once per turn.



DARKW:P Fancy Ball
ATK:
2400
LINK-3
Link Arrow:
Top
Bottom-Left
Bottom-Right
2+ Effect Monsters When your opponent activates a monster effect on the field or GY (Quick Effect): You can banish this card that was Special Summoned this turn until the End Phase; negate that effect, and if you do, banish it. During your opponent's Main Phase, you can (Quick Effect): Immediately after this effect resolves, Link Summon 1 Link Monster, and if this card you control would be used as material for that Link Summon, you can also use 1 Link-2 or lower monster your opponent controls. Neither player can activate the effects of Link Monsters in response to this effect's activation. You can only use each effect of "W:P Fancy Ball" once per turn.



DARK
Code Igniter
ATK:
2300
DEF:
2000
2 Level 4 monsters If this card is Xyz Summoned: You can add 1 Cyberse Ritual Monster from your Deck to your hand. You can detach 1 material from this card; Ritual Summon 1 Ritual Monster from your hand, by Tributing monsters from your hand or field whose total Levels equal or exceed its Level. If this card is sent to the GY as Link Material: You can add 1 "A.I." Trap from your Deck to your hand. You can only use each effect of "Code Igniter" once per turn.



EARTH
Primathmech Alembertian
ATK:
2000
DEF:
0
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.



EARTH
Primathmech Laplacian
ATK:
2000
DEF:
0
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.



























