Price updates are limited. Some displayed estimates may be older. See each card’s price history for context.
K9-66X "Jacks"'s Near Mint price is up 13.3% ($0.04) over the past 30 days.
10h ago· Updated Nov 1, 2026
Card Details
TypeMonster — Fiend
Mana CostLevel 5
P/TATK 2600 / DEF 2500
RaceFiend
ArchetypeK9
AttributeDARK
Frame Typexyz
Human Readable TypeXyz Effect Monster
Card Text2 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.
inkwell Fair Value™?· NM
$0.34
moderate
——
Condition?
Confidencehigh
Prices as ofNov 1
Normal—
Cheapest printing—
Why This Price
inkwell Estimate
Fair Value$0.34
Movement
7D Change-2.9% (-$0.01)
30D Change+13.3% (+$0.04)
Freshness
Prices as ofNov 1
Update cadenceDaily
More from Doom of Dimensions
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- How much is K9-66X "Jacks" worth?
- The current Near Mint price for K9-66X "Jacks" from Doom of Dimensions (Yu-Gi-Oh!) is $0.34. It has decreased 2.9% over the past 7 days.
- What set is K9-66X "Jacks" from?
- K9-66X "Jacks" is from the Doom of Dimensions set. It is a Rare in Yu-Gi-Oh!.
- What rarity is K9-66X "Jacks"?
- K9-66X "Jacks" is a Rare card from Doom of Dimensions in Yu-Gi-Oh!.
- How has the price of K9-66X "Jacks" changed over the past 30 days?
- Over the past 30 days, the Near Mint price of K9-66X "Jacks" has risen 13.3% ($0.04) to $0.34.
- How many printings of K9-66X "Jacks" exist?
- K9-66X "Jacks" has 2 printings across different Yu-Gi-Oh! sets. The cheapest printing is $0.34 from Doom of Dimensions.