Effect Monster
Gem-Knight Hollowcore
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.
From Yu-Gi-Oh! Trading Card Game.
Exact printings
- Battles of Legend: Monster Mayhem - #BLMM-EN022 · Secret Rare · EN
Open the interactive version on https://mythscribe.cloud/app/tcg/cards/cms6np0sn2omwsb1i45a60vam.