SetBattles of Legend: Monster Mayhem
CodeBLMM-EN022
RaritySecret Rare
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Yu-Gi-Oh! · Battles of Legend: Monster Mayhem
Gem-Knight Hollowcore
BLMM-EN022·Secret Rare
MonsterEffect MonsterFiendDARKLevel 7
ATK 1950DEF 2450
You 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.
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Price History (30 Days)
2026-06-122026-06-18