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Gem-Knight Hollowcore — Battles of Legend: Monster Mayhem Yu-Gi-Oh! card
Yu-Gi-Oh! · mythicLive pricing

Gem-Knight Hollowcore

Declining-22.2%
Gem-Knight Hollowcore's Near Mint price is down 43.2% ($0.16) over the past 30 days.
8h ago· Updated Nov 2, 2026
Card Details
TypeMonster — Fiend
Mana CostLevel 7
P/TATK 1950 / DEF 2450
RaceFiend
ArchetypeGem-
AttributeDARK
Frame Typeeffect
Human Readable TypeEffect Monster
Card TextYou can send 1 "Gem-Knight" Normal Monster or 1 "Gem-Knight Fusion" from your Deck to the GY; Special Summon this card from your hand in Defense Position. When your opponent activates a card or effect, while you control a "Gem-Knight" Fusion Monster (Quick Effect): You can banish 3 "Gem-Knight" cards from your GY, including this card; negate that effect, then all "Gem-Knight" monsters you currently control gain 1000 ATK. You can only use each effect of "Gem-Knight Hollowcore" once per turn.
inkwell Fair Value™?· NM
$0.21
thin
$0.14
$0.24
Condition?
Confidencemedium
Prices as ofNov 2
Normal—
Cheapest printing—
Set Price Alert

Why This Price

inkwell Estimate
Fair Value$0.21
Movement
7D Change-22.2% (-$0.06)
30D Change-43.2% (-$0.16)
Freshness
Prices as ofNov 2
Update cadenceDaily
Inkwell Fair Value$0.21NM · compare before you buy
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2 Printings
How much is Gem-Knight Hollowcore worth?
The current Near Mint price for Gem-Knight Hollowcore from Battles of Legend: Monster Mayhem (Yu-Gi-Oh!) is $0.21. It has decreased 22.2% over the past 7 days.
What set is Gem-Knight Hollowcore from?
Gem-Knight Hollowcore is from the Battles of Legend: Monster Mayhem set. It is a mythic in Yu-Gi-Oh!.
What rarity is Gem-Knight Hollowcore?
Gem-Knight Hollowcore is a mythic card from Battles of Legend: Monster Mayhem in Yu-Gi-Oh!.
How has the price of Gem-Knight Hollowcore changed over the past 30 days?
Over the past 30 days, the Near Mint price of Gem-Knight Hollowcore has fallen 43.2% ($0.16) to $0.21.
How many printings of Gem-Knight Hollowcore exist?
Gem-Knight Hollowcore has 2 printings across different Yu-Gi-Oh! sets. The cheapest printing is $0.21 from Battles of Legend: Monster Mayhem.