K9-66X "Jacks"
Yu-Gi-Oh! card · Xyz Monster · first printed 2025 in Doom of Dimensions
DOOD-EN0472025
K9-66X "Jacks"DARK
★★★★★
[Fiend / Xyz]
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.
ATK/2600DEF/2500
DOOD-EN0472025 · Super Rare
| Card name | K9-66X "Jacks" |
|---|---|
| Card type | Xyz Monster |
| Attribute | DARK |
| Type | Fiend |
| Level / Rank / Link | Rank 5 |
| ATK | 2600 |
| DEF / Link Arrows | 2500 |
| Pendulum Scale | – |
| Abilities | – |
| Archetype | K9 |
| Deck | Extra Deck |
| First set | Doom of Dimensions |
| First card code | DOOD-EN047 |
| First rarity | Super Rare |
| First released | September 25, 2025 |
| English TCG printings | 1 |
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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.