WATER 8

You can Special Summon this card (from your hand) to your opponent's field in Attack Position, by Tributing 1 monster they control. If your opponent controls a "Kaiju" monster, you can Special Summon this card (from your hand) in Attack Position. You can only control 1 "Kaiju" monster. When your opponent activates a card or effect, except "Gameciel, the Sea Turtle Kaiju" (Quick Effect): You can remove 2 Kaiju Counters from anywhere on the field; negate the activation, and if you do, banish that card.

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.

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.

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.

DARK 6

You can Special Summon this card (from your hand) in Defense Position to your zone a Link Monster points to. You can only Special Summon "World Legacy - "World Crown"" once per turn this way. When a monster on the field that was Special Summoned from the Extra Deck activates its effect (Quick Effect): You can Tribute this card; negate the activation, and if you do, destroy it. If this Normal Summoned/Set card is Tributed: You can add 1 "World Legacy" Spell/Trap from your Deck to your hand. You can only use this effect of "World Legacy - "World Crown"" once per turn.

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".

WIND

2+ monsters with different names, except Tokens You can only control 1 "Apollousa, Bow of the Goddess". The original ATK of this card becomes 800 x the number of Link Materials used for its Link Summon. Once per Chain, when your opponent activates a monster effect (Quick Effect): You can make this card lose exactly 800 ATK, and if you do, negate the activation.

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.

DARK

2+ monsters with different names If this card is Link Summoned: You can discard 1 card, then target 1 card on the field; shuffle it into the Deck, 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 Unicorn" once per turn. While any co-linked "Knightmare" monsters are on the field, for your normal draw in your Draw Phase, draw 1 card for each different card name among those co-linked "Knightmare" monsters, instead of drawing just 1 card.

LIGHT

2 monsters Can only be Link Summoned while you have a "World Legacy" card in your GY. You can only use each of the following effects of "Lib the World Key Blademaster" once per turn. ● During your Main Phase: You can Set 1 "World Legacy" Spell/Trap directly from your Deck, but it cannot be activated this turn while you have no "World Legacy" monster in your GY. ● If this Link Summoned card is sent to the GY as Link Material: You can shuffle 1 card on the field into the Deck.

LIGHT

2+ monsters Special Summoned from the Extra Deck While this Link Summoned card is on the field, your opponent cannot target this card with card effects, also their monsters cannot target monsters for attacks, except this one. Once per battle, during damage calculation, if this card battles a Special Summoned monster (Quick Effect): You can make this card gain ATK equal to that opponent's monster's ATK during that damage calculation only. If this Link Summoned card you control is sent to your GY by an opponent's card: You can shuffle 1 card on the field into the Deck.

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.

WIND

1 non-WIND "Sky Striker Ace" monster You can only Special Summon "Sky Striker Ace - Hayate(s)" once per turn. This card can attack directly. After damage calculation, if this card battled: You can send 1 "Sky Striker" card from your Deck to the GY.

FIRE

1 non-FIRE "Sky Striker Ace" monster If this card is Special Summoned: You can target 1 "Sky Striker" Spell in your GY; add it to your hand. Gains 100 ATK for each Spell in your GY. You can only Special Summon "Sky Striker Ace - Kagari(s)" once per turn.

WATER

1 non-WATER "Sky Striker Ace" monster Monsters your opponent controls lose 100 ATK/DEF for each Spell in your GY. Once per turn, during the End Phase, if this card was Special Summoned this turn: You can add 1 "Sky Striker" Spell from your Deck to your hand, with a name different from the cards in your GY. You can only Special Summon "Sky Striker Ace - Shizuku(s)" once per turn.

DARK

2 monsters, including a "Sky Striker Ace" monster Must be Link Summoned. You can only Special Summon "Sky Striker Ace - Zeke(s)" once per turn. If this card is Link Summoned: You can target 1 face-up monster on the field; banish it until your opponent's next End Phase. Once per turn: You can target 1 other card you control; this card gains 1000 ATK, then, send the targeted card to the GY.

LIGHT

4+ Effect Monsters You can also use 1 monster your opponent controls as material to Link Summon this card. If this card is Link Summoned: You can negate the effects of all face-up monsters your opponent currently controls. This Link Summoned card is unaffected by your opponent's activated effects, unless they target this card. Once per turn, when your opponent activates a card or effect that Special Summons a monster(s) from the GY (Quick Effect): You can negate the activation.

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.

LIGHT 1

During your opponent's Main Phase (Quick Effect): You can send this card from your hand to the GY, then target 1 Effect Monster your opponent controls; negate the effects of that face-up monster your opponent controls, until the end of this 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.

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 Quick

Target 1 monster in your opponent's GY; banish it, and if you do, until the end of the next turn, its effects are negated, as well as the activated effects and effects on the field of monsters with the same original name.

Spell Normal

Target 1 monster your opponent controls; take control of it until the End Phase.

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 Normal

Target 1 monster in either GY; Special Summon it.

Spell Normal

If you control no monsters in your Main Monster Zone: Target 1 face-up monster on the field; destroy it, then, if you have 3 or more Spells in your GY, you can destroy 1 Spell/Trap on the field.

Spell Quick

If you control no monsters in your Main Monster Zone: Special Summon 1 "Sky Striker Ace Token" (Warrior/DARK/Level 1/ATK 0/DEF 0) in Defense Position, which cannot be Tributed, and if you have 3 or more Spells in your GY when this effect resolves, the Token's ATK/DEF become 1500 instead.

Spell Quick

If you control no monsters in your Main Monster Zone: Target 1 face-up Effect Monster on the field; negate that face-up monster's effects until the end of this turn, then, if you have 3 or more Spells in your GY, you can take control of that monster until the End Phase.

Spell Normal

If you control no monsters in your Main Monster Zone: Add 1 "Sky Striker" card from your Deck to your hand, except "Sky Striker Mobilize - Engage!", then, if you have 3 or more Spells in your GY, you can draw 1 card.

Spell Quick

If you control no monsters in your Main Monster Zone: You cannot Special Summon monsters from the Extra Deck for the rest of this turn after this card resolves, except "Sky Striker Ace" monsters, also send 1 other card you control to the GY, and if you do, Special Summon 1 "Sky Striker Ace" monster from your Extra Deck to the Extra Monster Zone, and if you have at least 1 LIGHT and 1 DARK "Sky Striker Ace" monsters on your field and/or in your GY, the Summoned monster gains 1000 ATK.

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.

Spell Quick

Special Summon 1 "Mekk-Knight" monster from your hand or Deck in Defense Position, but return it to the hand during the End Phase. For the rest of this turn after this card resolves, you cannot Special Summon monsters, except "Mekk-Knight" monsters. You can only activate 1 "World Legacy's Memory" 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.

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.