TCGenius.ai
K9-66X "Jacks"
DARK · Fiend / Xyz Effect Monster · Rank 5 · ATK 2600 / DEF 2500
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.
Is it legal?
TCGUnlimited (3)
OCGUnlimited (3)
Master DuelUnlimited (3)
Rarity: Rare (R)
Genesys0 points
Price
About $0.24–$0.28 across printings and stores (as of Oct 8, 2026). See listings on TCGplayer · eBay · Cardmarket (EU)
Price history & alerts
Played in tournaments
In 2 recent tournament lists, mostly Vanquish Soul K9 (1), K9 (1).
Printings
| Set | Code | Rarity |
|---|---|---|
| Doom of Dimensions | DOOD-EN047 | Super Rare |
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