Card page · passcode 67515699
K9-66X "Jacks"
Attribute
Dark
Rank
5
ATK
2600
DEF
2500
[ Fiend / Effect / Xyz ] · Xyz Effect Monster · Extra Deck
Card text
2 Level 5 monsters If this card is Xyz Summoned, or if your opponent activates a monster effect in the hand or GY: You can detach 1 material from this card, then target 1 monster on the field; destroy it. You can only use this effect of "K9-66X "Jacks"" once per turn. A "K9" Xyz Monster that has this card as material gains this effect. ● During any turn in which your opponent has activated a monster effect in the hand or GY, any battle damage this card inflicts to your opponent is doubled.
English text as printed. The card database markup is stripped before display.
Other languages
Português
"Jacks" K9-66X
2 monstros de Nível 5 Se este card for Invocado por Invocação-Xyz, ou se seu oponente ativar um efeito de monstro na mão ou no Cemitério: você pode desassociar 1 matéria deste card e, depois, escolha 1 monstro no campo; destrua-o. Você só pode usar este efeito de ""Jacks" K9-66X" uma vez por turno. Um Monstro Xyz "K9" que tenha este card como matéria ganha este efeito. ● Durante qualquer turno no qual seu oponente tenha ativado um efeito de monstro na mão ou no Cemitério, qualquer dano de batalha que este card causar ao seu oponente é dobrado.
日本語
Ｋ９－６６６号 “Ｊａｃｋｓ”
レベル５モンスター×２ このカード名の①の効果は１ターンに１度しか使用できない。①：このカードがＸ召喚した場合、または相手が手札・墓地のモンスターの効果を発動した場合、このカードのＸ素材を１つ取り除き、フィールドのモンスター１体を対象として発動できる。そのモンスターを破壊する。②：このカードをＸ素材としている「Ｋ９」Ｘモンスターは以下の効果を得る。●相手が手札・墓地のモンスターの効果を発動したターン、このカードが相手に与える戦闘ダメージは倍になる。
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Legality
Genesys prices cards against a 100-point deck cap instead of capping copies, and bans Pendulum and Link monsters outright. A card with no points entry is free; a banned type is unplayable at any price.
Banlist history
This card has never been on a TCG Forbidden & Limited List. See every list since 2002.
Errata history
No errata recorded. The printed text above is the only wording this card has had, so its TCG release date is also its debut.
Releases
OCG debut
26 Jul 2025
TCG debut
26 Sept 2025
Archetypes and support
Membership is read two ways at once: cards whose name carries the archetype, and cards the database tags into it. Both are counted here, which is what a player means by “the K9 cards”.