DARK 4

If this card is Normal or Special Summoned: You can send 1 "Orcust" or "World Legacy" card from your Deck to the GY, then, if there are 2 or more other cards in this card's column, treat this card as a Tuner this turn. If you control no other monsters: You can Special Summon 1 "World Legacy Token" (Machine/DARK/Level 1/ATK 0/DEF 0) to both players' fields in Defense Position. You can only use each effect of "Girsu, the Orcust Mekk-Knight" once per turn.

EARTH 7

If you control no monsters, you can Special Summon this card (from your hand). You can only use each of the following effects of "Kashtira Fenrir" once per turn. During your Main Phase: You can add 1 "Kashtira" monster from your Deck to your hand. When this card declares an attack, or if your opponent activates a monster effect (except during the Damage Step): You can target 1 face-up card your opponent controls; banish it, face-down.

WATER 7

If you control no monsters, you can Special Summon this card (from your hand). You can only use each of the following effects of "Kashtira Ogre" once per turn. During your Main Phase: You can add 1 "Kashtira" Trap from your Deck to your hand. When this card declares an attack, or if your opponent activates a monster effect (except during the Damage Step): You can excavate up to 5 cards from the top of your opponent's Deck, banish 1 excavated card, face-down, and place the rest on the top of the Deck in the same order.

WIND 7

If you control no monsters, you can Special Summon this card (from your hand). You can only use each of the following effects of "Kashtira Unicorn" once per turn. During your Main Phase: You can add 1 "Kashtira" Spell from your Deck to your hand. When this card declares an attack, or if your opponent activates a monster effect (except during the Damage Step): You can look at your opponent's Extra Deck, and if you do, banish 1 monster from it, face-down.

FIRE 4

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 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.

EARTH 4

You can Tribute 1 Cyberse monster you control in the Extra Monster Zone; Special Summon up to 1 Level 4 Cyberse monster each from your hand and GY. If this card is sent to the GY: You can target 1 face-up monster on the field; its ATK becomes halved until the end of this turn. You can only use each effect of "Mathmech Division" once per turn.

EARTH 4

You can target 1 Level 4 Cyberse monster you control; its Level becomes 8 until the end of this turn. If this card is sent to the GY: You can target 1 Cyberse monster you control in the Extra Monster Zone; its ATK becomes doubled until the end of this turn. You can only use each effect of "Mathmech Multiplication" once per turn.

FIRE 4

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 loses 1000 ATK until the end of this turn. You can only use this effect of "Mathmech Subtraction" once per turn.

LIGHT 5

If 2 or more cards are in the same column, you can Special Summon this card (from your hand) in that column. You can only Special Summon "Mekk-Knight Blue Sky" once per turn this way. If this card is Normal or Special Summoned from the hand: You can add "Mekk-Knight" monsters with different names, except "Mekk-Knight Blue Sky", from your Deck to your hand, equal to the number of your opponent's cards in this card's column. You can only use this effect of "Mekk-Knight Blue Sky" once per turn.

LIGHT 8

If 2 or more cards are in the same column, you can Special Summon this card (from your hand) in that column. You can only Special Summon "Mekk-Knight Indigo Eclipse" once per turn this way. Once per turn (Quick Effect): You can target 1 "Mekk-Knight" monster you control; move that target to another of your Main Monster Zones.

LIGHT 8

If 2 or more cards are in the same column, you can Special Summon this card (from your hand) in that column. You can only Special Summon "Mekk-Knight Purple Nightfall" once per turn this way. (Quick Effect): You can target 1 "Mekk-Knight" monster you control; banish it (until the Standby Phase of your next turn), and if you do, add 1 "Mekk-Knight" monster from your Deck to your hand, except "Mekk-Knight Purple Nightfall". You can only use this effect of "Mekk-Knight Purple Nightfall" once per turn.

LIGHT 7

If 2 or more cards are in the same column, you can Special Summon this card (from your hand) in that column. You can only Special Summon "Mekk-Knight Red Moon" once per turn this way. You can banish 1 "Mekk-Knight" monster from your GY, then target 1 face-up monster in this card's column; destroy it.

DARK

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".

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

2 monsters, including a "Mekk-Knight" monster If this card is Link Summoned: You can discard 1 "Mekk-Knight" monster or 1 "World Legacy" card; add 1 "World Legacy" card from your Deck to your hand. You can only use this effect of "Mekk-Knight of the Morning Star" once per turn. If your "Mekk-Knight" monster battles a monster in a different column than it, your monster cannot be destroyed by that battle, also you take no battle damage from that battle.

LIGHT

2+ "Mekk-Knight" monsters This card can attack directly if it is the only card in its column. If this card in the Extra Monster Zone points to no monsters, it cannot be destroyed by card effects, also your opponent cannot target it with card effects. You can send 1 other card you control in this card's column to the GY: Special Summon 1 "Mekk-Knight" monster from your Deck in Defense Position. You can only use this effect of "Mekk-Knight Spectrum Supreme" once per turn.

WATER

2 Cyberse monsters You can target 1 Cyberse monster in your GY; Special Summon it in Defense Position, but negate its effects, also you cannot Special Summon monsters for the rest of this turn, except Cyberse monsters. You can only use this effect of "Splash Mage" once per turn.

EARTH

2+ Effect Monsters While this card is co-linked, it and its co-linked monsters gain 500 ATK, also your opponent cannot target any of them with card effects. You can target 1 Link-3 or lower Cyberse Link Monster in your GY, except "Transcode Talker"; Special Summon it to your zone this card points to. You cannot Special Summon monsters the turn you activate this effect, except Cyberse monsters. You can only use this effect of "Transcode Talker" once per turn.

DARK

2 Effect Monsters Once per turn: You can target 1 face-up monster this card points to and 1 face-up monster your opponent controls; the opponent's target loses ATK equal to the ATK of the target this monster points to, until the end of this turn.

FIRE 12

1 Tuner + 1+ non-Tuner monsters Unaffected by card effects, except "Mathmech" cards, while in the Extra Monster Zone. If this card in the Extra Monster Zone battles an opponent's monster, any battle damage it inflicts to your opponent is doubled. 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" card from your Deck to your hand. You can only use this effect of "Geomathmech Final Sigma" 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.

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.

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.

LIGHT 4

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.

FIRE

2+ Level 7 monsters During each Standby Phase: You can Special Summon 1 "Kashtira" monster from your Deck. You can only use the previous effect of "Kashtira Shangri-Ira" once per turn. Each time a card(s) your opponent owns and possesses is banished face-down (except during the Damage Step): You can choose 1 unused Main Monster Zone or Spell & Trap Zone; it cannot be used while this monster is face-up on the field. If this card on the field would be destroyed by battle or card effect, you can detach 1 material from this card instead.

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.

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 Normal

Send 1 card from your hand to the GY; add 1 Level 4 or lower Cyberse monster from your Deck to your hand. You can only activate 1 "Cynet Mining" per turn.

Spell Continuous

You can Normal Summon Level 7 monsters without Tributing. During your Main Phase: You can Special Summon 1 of your non-Xyz "Kashtira" monsters that is banished or in your GY. If your opponent activates a Spell Card or effect, and you control a "Kashtira" monster: You can target 3 cards in your opponent's GY; banish them, face-down. You can only use each effect of "Kashtira Birth" once per turn.

Spell Normal

Target 1 "Mathmech" monster in your GY; Special Summon it, and if you do, it gains 1000 ATK until the end of this turn. You can only activate 1 "Mathmech Equation" per turn.

Spell Normal

Target 1 monster in your GY; Special Summon it to your zone a Link Monster points to. You can only activate 1 "World Legacy Succession" per turn.

Trap Continuous

During either player's turn: You can Special Summon 1 of your "Kashtira" monsters that is banished or in your hand. If your opponent activates a Trap Card or effect, you control a "Kashtira" monster, and this card is already face-up in your Spell & Trap Zone: You can look at your opponent's hand, and if you do, banish 1 card from it face-down. You can only use each effect of "Kashtira Preparations" 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.

Trap Continuous

When this card is activated: You can target 1 Level 5 or higher monster in your GY; Special Summon it. When this card leaves the field, destroy that monster. Negate any opponent's monster effect that activates in the same column as a "Mekk-Knight" monster you control.