Gem-Knight Ruby
Fusion Monster

"Gem-Knight Garnet" + 1 "Gem-Knight" monster Must first be Fusion Summoned with the above Fusion Material Monsters. Once per turn: You can Tribute 1 face-up "Gem-" monster; this card gains ATK equal to the Tributed monster's ATK on the field, until the End Phase. If this card attacks a Defense Position monster, inflict piercing Battle Damage to your opponent.
About the card
Gem-Knight Ruby is a EARTH Pyro Fusion Monster, Level 6, with 2500 ATK and 1300 DEF.
It lives in the Extra Deck and enters the field by Fusion Summon.
It belongs to the Gem- archetype.
It is unrestricted on the TCG Forbidden & Limited List: a deck can run up to 3 copies.
It came out in the TCG in 2011 and has been printed in 3 sets, from the first (Duel Terminal 5a) to the latest (Battles of Legend: Monster Mayhem).
Sets it was printed in
- Battles of Legend: Monster Mayhem 2025UR Ultra Rare
- Hidden Arsenal 5: Steelswarm Invasion 2011ScR Secret Rare
- Duel Terminal 5a 2011DUPR Duel Terminal Ultra Parallel Rare
More Gem- cards
Card data and images provided by YGOPRODeck.











