WATER 4

If this card is Normal or Special Summoned: You can send 1 "Marincess" monster from your Deck to the GY, except "Marincess Blue Tang". If this card is sent to the GY as material for the Link Summon of a WATER monster: You can excavate the top 3 cards of your Deck, and if you do, you can add 1 excavated "Marincess" card to your hand, also shuffle the rest into your Deck. You can only use each effect of "Marincess Blue Tang" once per turn.

WATER 5

During damage calculation, if a monster battles another monster (Quick Effect): You can send 1 other "Marincess" monster from your hand to the GY; Special Summon this card from your hand, and if you do, the damage you take from that battle is halved. At the start of the Damage Step, if an opponent's monster attacks: You can banish this card from your GY; this turn, you take no battle damage that is less than or equal to the total Link Rating of the "Marincess" Link Monsters in your GY x 1000. You can only use each effect of "Marincess Crown Tail" once per turn.

WATER 4

If this card is Normal or Special Summoned: You can Special Summon 1 "Marincess" monster from your hand in Defense Position, except "Marincess Pascalus". During your Main Phase, except the turn this card was sent to the GY: You can banish this card from your GY, then target 1 "Marincess" Spell/Trap in your GY; add it to your hand. You can only use each effect of "Marincess Pascalus" once per turn.

WATER 3

You can Special Summon this card (from your hand) to your zone a "Marincess" Link Monster points to. You can only Special Summon "Marincess Sea Horse" once per turn this way. During your Main Phase, except the turn this card was sent to the GY: You can banish this card from your GY; Special Summon 1 WATER monster from your hand to your zone a "Marincess" Link Monster points to. You can only use this effect of "Marincess Sea Horse" once per turn.

WATER 5

You can target 1 "Marincess" card you control; Special Summon this card from your hand, and if you do, it gains this effect. ● While this card is in the Monster Zone, the targeted card cannot be destroyed by your opponent's card effects. You can banish this card from your GY, then target 1 "Marincess" Link Monster you control; equip it with 1 "Marincess" Link Monster from your GY. You can only use each effect of "Marincess Sleepy Maiden" 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.

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.

LIGHT

2+ monsters Once while face-up on the field (Quick Effect): You can target monsters on the field and/or GY up to the number of monsters co-linked to this card; return them to the hand. If a monster this card points to is destroyed by battle or sent to the GY: You can Special Summon 1 Cyberse monster from your hand. You can only use each effect of "Firewall Dragon" once per turn.

EARTH

1 Level 4 or lower Cyberse monster If this card is Special Summoned: For the rest of this turn, you cannot Link Summon Link-3 or higher Link Monsters. If this co-linked card is Tributed: You can Special Summon 2 "Link Tokens" (Cyberse/LIGHT/Level 1/ATK 0/DEF 0). You can only use this effect of "Link Devotee" once per turn.

LIGHT

1 Level 4 or lower Cyberse monster You can Tribute 1 monster this card points to; draw 1 card, then place 1 card from your hand on the bottom of the Deck. You can only use this effect of "Link Disciple" once per turn.

WATER

2+ WATER monsters While this card is in the Extra Monster Zone, your opponent's monsters cannot attack any monsters, except this one. You can only use each of the following effects of "Marincess Aqua Argonaut" once per turn. You can target 1 WATER monster you control and 1 card your opponent controls; return them to the hand. During your opponent's turn, when a Spell/Trap Card or effect is activated on the field (Quick Effect): You can Special Summon 1 of your "Marincess" Monster Cards equipped to this card, and if you do, negate that activated effect.

WATER

2 WATER monsters Unaffected by your opponent's monster effects while this card is in the Extra Monster Zone. During the Damage Step, if this card battles an opponent's monster, that opponent's monster is unaffected by card effects, except its own. When this card, or your "Marincess" Link Monster this card points to, is targeted for an attack: You can send 1 "Marincess" monster from your hand to the GY; for that battle, your monster cannot be destroyed by battle and you take no battle damage.

WATER

1 Level 4 or lower "Marincess" monster If this card is Link Summoned: You can add 1 "Marincess" Spell from your Deck to your hand. You can only Link Summon "Marincess Sea Angel" once per turn.

WATER

2+ WATER monsters Once per battle, during damage calculation, if this card battles a monster (Quick Effect): You can Special Summon 1 of your "Marincess" Monster Cards equipped to this card, also this card cannot be destroyed by that battle, and you take no battle damage from that battle. Equip that Special Summoned monster to this card during the End Phase. If this card in its owner's possession is destroyed by an opponent's card: You can Special Summon 1 Link-3 or lower "Marincess" monster from your GY.

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.

EARTH 3

When a card or effect is activated that includes any of these effects (Quick Effect): You can discard this card; negate that activation. ● Add a card(s) from the GY to the hand, Deck, and/or Extra Deck. ● Special Summon a Monster Card(s) from the GY. ● Banish a card(s) from the GY. You can only use this effect of "Ghost Belle & Haunted Mansion" 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.

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 Field

All "Marincess" monsters you control gain 200 ATK, also each one gains 600 ATK for each "Marincess" card equipped to it. Monsters you control in the Extra Monster Zone that were Link Summoned using "Marincess Crystal Heart" as material are unaffected by your opponent's card effects. When you Link Summon a "Marincess" monster to the Extra Monster Zone (except during the Damage Step): You can equip up to 3 "Marincess" Link Monsters with different names from your GY to that Link Summoned monster.

Spell Equip

Equip only to a Cyberse monster. If the equipped monster battles an opponent's monster, during damage calculation: You can send 1 "Mathmech" monster from your Deck to the GY; the equipped monster gains ATK equal to the sent monster's ATK, until the end of this turn (even if this card leaves the field). If this card is sent from the Spell & Trap Zone to the GY: You can target 1 "Mathmech" card in your GY, except "Mathmech Billionblade Nayuta"; add it to your hand. You can only use each effect of "Mathmech Billionblade Nayuta" once per turn.

Trap Normal

If you control a "Marincess" Link Monster: Target 1 face-up monster your opponent controls; negate that face-up monster's effects until the end of this turn, then, if you control a Link-2 or higher "Marincess" monster, all face-up monsters you currently control are unaffected by your opponent's card effects until the end of this turn. If you control a Link-3 or higher "Marincess" monster, you can activate this card from your hand.